Among the numbers below, which is the largest number that perfectly. Class 7

Among the numbers below, which is the largest number that perfectly. Class 7

Question 1.

Among the numbers below, which is the largest number that perfectly divides both 306 and 36? Class 7

(a) 36

(b) 612

(c) 18

(d) 3

(e) 2

(f) 360

Solution:

HCF of 306 and 36 = 18.

So, answer is (c).

Question 2.

Find the smallest number that is divisible by 3, 4, 5 and 7, but leaves a remainder of 10 when divided by 11. Class 7

Solution:

LCM of 3, 4, 5 and 7 = 420..

Now, 420 × 6 = 2520 and when 2520 is divided by 11 gives remainder 10.

So, the number is 2520.