Question 1 :
A car is travelling 48 km in one hour. The distance travelled by the car in 12 minutes is _________.
Question 2 :
Length of a side of an equilateral triangle and its perimeter vary inversely with each other. True or false ?
Question 3 :
Choose the correct option. Distance travelled by an auto-rickshaw and time taken
Question 4 :
If a tree 24 m high casts a shadow of 15 m, then the height of a pole that casts a shadow of 6 m under similar conditions is 9.6 m. True or false ?
Question 6 :
Choose the correct option. The number of people working and the quantity of work
Question 7 :
In a scout camp, there is food provision for 300 cadets for 42 days. If 50 more persons join the camp, for how many days will the provision last?
Question 8 :
The cost of 27 kg of iron is Rs 1,080, what will be the cost of 120 kg of iron of the same quality?
Question 9 :
If the area occupied by 15 postal stamps is 60 $cm^2$, then the area occupied by 120 such postal stamps will be _______.
Question 10 :
Assuming land to be uniformly fertile, the area of land and the yield on it vary
Question 11 :
Both u and v vary directly with each other. When u is 10, v is 15, which of the following is not a possible pair of corresponding values of u and v?
Question 12 :
The area of cultivated land and the crop harvested is a case of direct proportion. True or false ?
Question 13 :
If x varies inversely as y and x = 20 when y = 600, find y when x = 400.
Question 14 :
The variable x is inversely proportional to y. If x increases by p%, then by what per cent will y decrease?
Question 15 :
Figures that have the same shape but not necessarily the same size are called ________ figures.
Question 16 :
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Look at the above figure. If x varies inversely as y, then what replaces the blank ?
Question 17 :
x and y are said to vary directly with each other if for some positive number k, ______ =k.
Question 18 :
Choose the correct option. Compound interest on a given sum and the sum invested
Question 19 :
Two quantities are said to vary ______ with each other if they increase (decrease) together in such a manner that the ratio of their corresponding values remains constant.
Question 20 :
If x and y are directly proportional and when x = 13, y = 39, which of the following is not a possible pair of corresponding values of x and y ?