SSC
Sample Paper
Mock Test-19 SSC CGL Tear-II Paper-1
question_answer
A man lands Rs. 1200 in four sums. If he gets 5% for Rs. 300, 6% for Rs. 350 and 6.5% for Rs. 400. What percentage must be get for the remainder, if the average interest is 6.5%?
A)31%
B) \[6%\]
C) \[\frac{31}{3}%\]
D) \[\frac{32}{3}%\]
Correct Answer:
D
Solution :
The interest of Rs. 300 at the rate of
\[5%=300\times \frac{5}{100}\]= Rs. 15
The interest of Rs. 350 at the rate of
\[6%=350\times \frac{6}{100}\]= Rs. 21
The interest of Rs. 400 at the rate of 65%
\[=400\times \frac{6.50}{100}\]= Rs. 26
\[\therefore \] Interest for Rs. 1050 \[(300+350+400)\]
= Rs. \[(15+21+26)\] = Rs. 62
\[\therefore \] The remainder sum \[=1200-1050\]= Rs. 150
\[\therefore \] Total interest required for Rs. 1200 at the rate of 6.5% is
\[1200\times \frac{6.5}{100}\]= Rs. 78
\[\therefore \] Interest he gets for Rs. 150 is
Rs. \[(78-62)\]= Rs. 16
\[\therefore \] Interest on Rs. 150 in Rs. 16
\[\therefore \] Per cent interest for the remainder \[=\frac{32}{3}%\]
