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UPSC CDS Math Simple and Compound Interest Questions
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© examsnet.com
Question : 1
Total: 19
The rate of interest on two different schemes is the same and it is 20%. But in one of the schemes, the interest is compounded half yearly and in the other the interest is compounded annually. Equal amounts are invested in the schemes. If the difference of the returns after 2 years is ₹482, then what is the principal amount in each scheme ?
[2019 CDS-II]
₹10,000
₹6,000
₹20,000
₹24,000
Validate
Solution:
If
₹
is the principal then difference in amount
=
(
1.1
)
4
−
(
1.2
)
2
=
1.4641
−
1.44
=
0.0241
∴
p
=
482
0.0241
=
2
×
10
4
=
₹
20
,
000
© examsnet.com
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