Correct option is D
Solution:
So we first need the LCM of these numbers.
27 = 33
35 = 5 × 7
25 = 52
21 = 3 × 7
the LCM is;
= 33 × 52 × 7
= 27 × 25 × 7 = 4725
The smallest no which when increased by 3 is 27, 35, 25 & 21 = 4725 - 3
= 4722
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