A) 12
B) 18
C) 6
D) 21
Correct Answer: C
Solution :
As the height of each stack is same, the required number of books in each stack =HCF of 84.90 and 120 \[84\text{ }=2\times 2\times 3\times 7\] \[90=2\times 3\times 3\times 5\] \[120=2\times 2\times 2\times 3\times 5\] \[\therefore \]HCF \[=2\times 3=6\]You need to login to perform this action.
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