Question

2. The least number which when add 3 to it, completely divided 8, 12 and 18 is?​

Answer 1

Answer:

LCM of 8, 12 and 16 = 48

So The nos. which when divided by 12,16 and 8 and leave remainder 3 will be a multiple of 48 + 3

These nos. are 51 ( 48×1 + 3), 99 (48×2 + 3), 147 ( 48×3 +3)... and so on. The least of them which leaves no remainder when divided by 7 is 147.

So the ans. is 147.