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Problems based on Numbers Test 5
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© examsnet.com
Question : 9
Total: 40
Find the smallest perfect square. Which is divisible by 15, 7 and 21?
11,025
10,609
12,395
22,670
3,675
Validate
Solution:
15 = 3 × 5, 21 = 7 × 3 and 7
So, a perfect square must contain 3, 5 and 7, i.e., 105.
105 × 105 = 11,025.
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