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1 . The ratio of two numbers is 3:4 and their LCM is 84, find the number-

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Answer: Option A

Explanation:

Given:

Ratio of two numbers = 3 : 4

LCM of two numbers = 84

Concept used:

LCM (Least Common Multiple) of 2 numbers is the smallest number which can be divided by both the numbers.

Calculation:

Let the two numbers be 3K and 4K.

LCM = 3 × 4 × K = 12K

বা, 12K = 84

বা, K = 7

Two numbers are

বা, 3K = 3 × 7 = 21 and,

বা, 4K = 4 × 7 = 28

∴ The greatest number of the 2 numbers is 28.

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