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Simple Interest Practice Test 3
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© examsnet.com
Question : 2
Total: 40
Madhava invested certain amount in three different schemes P, Q and R with the rate of interest 10% p.a., 12% p.a. and 15% p.a. respectively. If the total interest accrued in one year was Rs. 3200 and the amount invested in scheme R was 150% of the amount invested in scheme P and 240% of the amount invested in scheme Q. Find the amount invested in scheme Q.
Rs. 6500
Rs. 6000
Rs. 5500
Rs. 5000
Validate
Solution:
Let amount invested in scheme P = Rs. x then amount invested in scheme R =
150
100
×
x
= Rs.
3
2
x
and also, if amount invested in Scheme Q = Rs. y; then amount invested in Scheme
R =
240
100
×
y
= Rs.
12
5
y
Since,
3
2
x
=
12
5
y
∴
x
=
8
5
y
Hence,
8
y
×
10
×
1
5
×
100
+
y
×
12
×
1
100
+
12
y
×
15
×
1
5
×
100
=
3200
⇒
4
25
y
+
3
25
y
+
9
25
y
=
3200
⇒
y
=
5000
© examsnet.com
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