Problems on Numbers - Quantitative Aptitude (MCQ) questions for Q. 120

Q.  What is the smallest number which is a perfect square and is divisible by 16, 20 and 24?
- Published on 15 Jun 15

a. 2400
b. 3600
c. 7200
d. 1600

ANSWER: 3600
 
3600. The number is perfect square of 60.

It is divisible by 36 24 and 20. Only two numbers 3600 and 7200 fit these conditions.

It is clear that 3600 is the smaller number.

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    Discussion

  • Divya   -Posted on 12 Jun 23
    In the Problems on Numbers topic question number 49 has a mistake as the question contains 16 and in the explanation it is 36. So, the answer became 3600 in place of 1600.

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