Multiple Choice Questions

What will be the least number which when tripled will be exactly divisible by 12 18 21 and 30 ........

Quantitative Aptitude LCM, HCF

What will be the least number which when tripled will be exactly divisible by 12, 18, 21 and 30?

420

630

1260

None of these

L.C.M of 12, 18, 21 and 30 is 1260.

Let there be a number 'x' which when trippled, is divisible by the given numbers.

=> x * 3 = 1260

=> x = 420

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