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