SSC CHSL 4 Aug 2021 Shift 1 Paper

Section: Quantitative Aptitude

Question : 56 of 100

Marks: +1, -0

A man invests

₹ 7000

8 \%

per annum simple interest for

2 {yr}

and

₹ 10000

at compound interest at the same rate for the same period, compounded annually. What will be the total interest and the total amount (in ₹) respectively, on maturity?

19748 and 2874
2748 and 19784
19784 and 2784
2784 and 19784

Validate

Solution:

Amount getting on SI for

2 {yr}

A \;\; =7000+\;{7000 × 8 × 2}/{100}

\;\; =7000+1120

A \;\; =₹ 8120

{SI} \;\; =A-P=8120-7000=1120

Amount getting on

{Cl}

for

2 {yr}

\;\;\;\;\; A \;\; =10000 ×(1+\;{8}/{100})^{2}=₹ 11664

∴ \;\text " Total amount "\;

\;\; =11664+8120=₹ 19784

\;\;\;\; C l \;\; =A-P=11664-10000=1664

\;\text " and total interest "\;

\;\; =1664+1120=₹ 2784

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