Question

very urgent

Q1 Find the least number which is exactly divisible by 18, 24 and 36.
Q2) Find the smallest number which when divided by 21, 28, 36, and 45 leaves a remainder 9 in each case.

Answer 1

HERE IS YOUR ANSWER
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basically meaning to find LCM factorise

18=2×3×3
24=2×2×2×3
36=2×2×3×3

L.c.m.=2^maximum occurances of2×3^maximum occurrences of 3 in the numbers

=2^3×3^2=8×9=72

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please mark it brainliest please please please