A) 40
B) 60
C) 80
D) 120
Correct Answer: A
Solution :
(a) Total length of the rope = 90m. Length of each piece \[=2\frac{1}{4}\] m. Number of pieces \[=\frac{90}{2\frac{1}{4}}=\frac{90}{\frac{9}{4}}\] \[=\underset{10}{\mathop{\bcancel{90}}}\,\,\times \frac{4}{\bcancel{9}}=40\]You need to login to perform this action.
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