A) Rs. 600
B) Rs. 720
C) Rs. 780
D) Rs. 840
Correct Answer: D
Solution :
Suppose sum =Rs. P Then \[\frac{P\times 5\times 4}{100}-\frac{P\times 5\times 3}{100}=42\] \[\frac{P\times 5}{100}=42\] \[P=\frac{42\times 100}{5}\] \[P=Rs.\,\,840\]You need to login to perform this action.
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