Question 3 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c60ef59b460d7261e584.PNG' />
In the above figure, find the missing terms.
Question 4 :
If 31z5 is a multiple of 9, where z is a digit, what is the value of z?
Question 5 :
HCF of co-prime numbers 4 and 15 was found as follows by factorisation: 4 = $2\times 2 and 15 = 3\times 5$ since there is no common prime factor, so HCF of 4 and 15 is 0. Is the answer correct? If not, what is the correct HCF?
Question 7 :
If ones digit of a number is 0, then the number is divisible by 10. TRUE OR FALSE?
Question 11 :
Find the LCM of the 9, 45 in which one number is the factor of the other.
Question 12 :
Three boys step off together from the same spot. Their steps measure 63 cm, 70 cm and 77 cm respectively. What is the minimum distance each should cover so that all can cover the distance in complete steps?
Question 18 :
A number is divisible by both 5 and 12. By which other number will that number be always divisible?
Question 22 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c568f59b460d7261e4ad.PNG' />
From the above conversation, find the remainder when divided by 11 if Sundaram had chosen the number 17.
Question 24 :
The traffic lights at three different road crossings change after every 48 seconds, 72 seconds and 108 seconds respectively. If they change simultaneously at 7 am, at what time will they change simultaneously again?
Question 25 :
Prime factorisation has been done in 70 = $2\times 5\times 7$. TRUE or FALSE?
Question 30 :
I am the smallest number, having four different prime factors. Can you find me?
Question 32 :
Find the digits A and B in BA x B3 = 57A.
Question 33 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c566f59b460d7261e4aa.PNG' />
From the above conversation, find the remainder when divided by 9 if Sundaram had chosen the number 21.
Question 35 :
Renu purchases two bags of fertiliser of weights 75 kg and 69 kg. Find the maximum value of weight which can measure the weight of the fertiliser exact number of times.
Question 36 :
If 21y5 is a multiple of 9, where y is a digit, what is the value of y?
Question 37 :
A digit in the blank space for 8__9484, so that the number formed is divisible by 11 is:
Question 39 :
If the three digit number 24x is divisible by 9, what among the following options can be the value of x?
Question 44 :
The smallest digit in the blank space for 4765__2, so that the number formed is divisible by 3 is:
Question 50 :
Find the LCM of the 6, 18 in which one number is the factor of the other.