Question 1 :
A photograph of a bacteria enlarged 50,000 times attains a length of 5cm. If the photograph is enlarged 20,000 times only, what would be its enlarged length ?
Question 2 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce6cf59b460d7261f01f.PNG' />
According to the above fig, If the cost of 1 kg of sugar is Rs. 36, then what would be the cost of 6 kg sugar?
Question 3 :
A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his cattle?
Question 4 :
Mohan prepares tea for himself and his sister. He uses 300 mL of water, 2 spoons of sugar, 1 spoon of tea leaves and 50 mL of milk. How much quantity of each item will he need, if he has to make tea for five persons?
Question 5 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cff4f59b460d7261f24a.jpg' />
In the above image, the table shows a mixture of paint that is prepared by mixing 1 part of red pigments with 8 parts of base. Find the parts of base that needs to be added when the parts of red pigment = 20.
Question 6 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce84f59b460d7261f041.PNG' />
In the above table, if 1 part of a red pigment requires 75 mL of base, how much red pigment should we mix with 1800 mL of base?
Question 7 :
The time taken lor a fixed journey and the speed of the vehicle. Is this in inverse proportion?
Question 8 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce88f59b460d7261f047.PNG' />
In the above image, given that a Television game show, the prize money of Rs. 1,00,000 is to be divided equally amongst the winners. Is the prize money given to an individual winner directly or inversely proportional to the number of winners?
Question 9 :
Two persons could fit new windows in a house in 3 days. How many persons would be needed to fit the windows in one day?
Question 10 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cf45f59b460d7261f155.PNG' />
Observe the above table and state if x and y are in direct proportions or not.
Question 11 :
A loaded truck travels 14 km in 25 minutes. If the speed remains the same, how far can it travel in 5 hours?
Question 12 :
There are 100 students in a hostel. Food provision for them is for 20 days. How long will these provisions last, if 25 more students join the group?
Question 13 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce83f59b460d7261f03f.PNG' />
In the above image, given that a mixture of paint is prepared by mixing 1 part of red pigments with 8 parts of base. In the above table, find the parts of base that need to be added for 12 parts of red pigment.
Question 14 :
A machine in a soft drink factory fills 840 bottles in six hours. How many bottles will it fill in five hours?
Question 15 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce7cf59b460d7261f035.jpeg' />
Find whether the length of a side is in direct proportion to the area of the square.
Question 16 :
Is the following in inverse proportion?
The time taken for a journey and the distance travelled in a uniform speed.
Question 17 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce8cf59b460d7261f04d.PNG' />
In the above image, given that Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Are the number of spokes and the angles formed between the pairs of consecutive spokes in inverse proportion?
Question 18 :
A school has 8 periods a day each of 45 minutes duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the same ?
Question 19 :
The time taken for a journey and the distance travelled in a uniform speed. Is this in inverse proportion?
Question 20 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cffaf59b460d7261f252.jpg' />
Refer to the above image. In a Television game show, the prize money of Rs.1,00,000 is to be divided equally amongst the winners. Find whether the prize money given to an individual winner is directly or inversely proportional to the number of winners.
Question 21 :
The population of a country and the area of land per person. Is this in inverse proportion?
Question 22 :
Following are the car parking charges near a railway station upto 4 hours Rs.60, 8 hours Rs.100, 12 hours Rs.140, 24 hours Rs.180. Check if the parking charges are in direct proportion to the parking time.
Question 23 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce73f59b460d7261f029.PNG' />
In the above fig, the angle turned by the minute hand from its original position and the time that has passed is mentioned. Calculate the value of $A_{2}$, $A_{3}$ and $A_{4}$. Is $\frac{T}{A}$ value same in all the cases ?
Question 24 :
Two persons could fit new windows in a house in 3 days. How many persons would be needed to fit the windows in one day?
Question 25 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cffdf59b460d7261f256.jpg' />
In the above image, refer the table shown. Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Are the number of spokes and the angles lormed between the pairs of consecutive spokes in inverse proportion?
Question 26 :
A contractor estimates that 3 persons could rewire Jasminder's house in 4 days. If, he uses 4 persons instead of three, how long should they take to complete the job?
Question 27 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce89f59b460d7261f049.PNG' />
In the above image, given that Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Help him by completing the following table given in the fig. above. What will be the angle between a pair of consecutive spokes if there are 10 spokes in the wheel.
Question 28 :
The number of workers on a job and the time to complete the job. Is this in inverse proportion?
Question 29 :
If we increase the speed, the time taken to cover a given distance ____________.
Question 30 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce76f59b460d7261f02c.PNG' />
In the above image, find whether x and y are directly proportional.
Question 31 :
A machine in a soft drink factory fills 840 bottles in six hours. How many bottles will it fill in five hours?
Question 32 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce6df59b460d7261f020.PNG' />
According to the above fig, If the cost of 1 kg of sugar is Rs. 36, then what would be the cost of 8 kg sugar?
Question 33 :
Is the following in inverse proportion?
The number of workers on a job and the time to complete the job.
Question 34 :
A school has 8 periods a day each of 45 minutes duration. How long would each period be, it the school has 9 periods a day, assuming the number of school hours to be the same.
Question 35 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce82f59b460d7261f03e.PNG' />
In the above image, given that a mixture of paint is prepared by mixing 1 part of red pigments with 8 parts of base. In the above table, find the parts of base that need to be added for 7 parts of red pigment.
Question 36 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cff5f59b460d7261f24b.jpg' />
In the above image, the table shows a mixture of paint that is prepared by mixing 1 part of red pigments with 8 parts of base. Find the parts of base that needs to be added when the parts of red pigment = 12.
Question 37 :
A photograph of a bacteria enlarged 50,000 times attains a length of 5 cm. What is the actual length of the bacteria?
Question 38 :
A batch of bottles were packed in 25 boxes with 12 bottles in each box. If the same batch is packed using 20 bottles in each box, how many boxes would be filled?
Question 39 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce7bf59b460d7261f034.PNG' />
In the above image, given a train is moving at a uniform speed of 75 km/hour. Use the table given in the above fig. to find the time required to cover a distance of 250 km.
Question 40 :
<image'https://s3.ap-south-1.amazonaws.com/testhomeworkcontent/Class%25208%2520RD%2520SHARMA%2FWhatsApp%20Image%202021-06-23%20at%2011.39.38%20AM.jpeg'>
Find whether the length of a side is in direct proportion to the perimeter of the square.
Question 41 :
Two persons could fit new windows in a house in 3 days. One of the persons fell ill before the work started. How long would the job take now ?
Question 42 :
If the number of articles purchased increases, the total cost __________ .
Question 43 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cff6f59b460d7261f24c.jpg' />
In the above image, the table shows a mixture of paint that is prepared by mixing 1 part of red pigments with 8 parts of base. If 1 part of a red pigment requires 75 mL of base, how much red pigment should we mix with 1800 ml of base ?
Question 44 :
A factory requires 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54 days ?
Question 45 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cf45f59b460d7261f154.PNG' />
Observe the above table and state if x and y are in direct proportions or not.
Question 46 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cffbf59b460d7261f254.jpg' />
In the above image, refer the table shown. Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. What is the angle between a pair of consecutive spokes if the number of spokes is 10 ?
Question 47 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cff7f59b460d7261f24e.jpg' />
Refer to the above image. In a Television game show, the prize money of Rs.1,00,000 is to be divided equally amongst the winners. What is the prize money for each winner if the number of winners = 5 ?
Question 48 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce81f59b460d7261f03c.PNG' />
Observe the following tables and find which pair of variables (here x and y) are in inverse proportion.
Question 49 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce85f59b460d7261f043.PNG' />
In the above image, given that a Television game show, the prize money of Rs. 1,00,000 is to be divided equally amongst the winners. How much will each of the winners get if there were 5 winners ?
