Question

Two numbers are in the ratio 4:7. If their l.c.m is 168,find the number.

Answer 1

Answer:

Let the numbers be 4x and 7x

Now you need to remember this identity-

LCM of two number * HCF of two numbers = Product of two numbers

Taking 4x and 7x, x is the highest common factor

LCM*x=4x*7x

168=28x

x=6

Numbers are 24 and 42

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