A clock was sold for Rs. 144. If the percentage of profit was numerically equal to the cost price the cost of the clock was = ?
A. Rs. 72
B. Rs. 80
C. Rs. 90
D. Rs. 100
Answer: Option B
Solution (By Examveda Team)
According to the question,Selling price = Rs. 144
Cost price is equal to percentage of profit.
Note : In this type of question go through option.
Option = B
Cost price = Rs. 80
Profit % = 80%
Selling price
$$\eqalign{ & = 80 + \frac{{80}}{{100}} \times 80 \cr & = {\text{Rs}}{\text{.144 (Satisfied)}} \cr} $$
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