LCM and HCF Practice Test 2

Question : 22 of 40

Marks: +1, -0

Two numbers are in the ratio 6 : 7 and their LCM is 546. Find the smaller number.

Solution:

Let HCF = x
and the numbers be 6x and 7x.
Now

6x×7x=x×546

x=546/{6×7}

x = HCF = 13
Smaller number = 78

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