A) 15
B) 21
C) 14
D) 18
Correct Answer: C
Solution :
: \[12=\frac{4\times 2\times 3\times 1}{2};\,24=\frac{4\times 3\times 2\times 2}{2}\]So, \[?=\frac{3\times 5\times 1\times 4}{2}\therefore ?=30.\]You need to login to perform this action.
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