100+ Simple Interest Aptitude Questions and Answers Pdf - 2
Question: 6
A sum of money at simple interest amounts to Rs.815 in 3 years and to Rs.854 in 4 years. The sum is
(A) Rs. 650
(B) Rs. 670
(C) Rs. 680
(D) Rs. 698
Ans: D
S.I. for 1 year = Rs. (854 - 815) = Rs. 39.
S.I. for 3 years = Rs. (39 × 3) = Rs. 117.
∴ Principal = Rs. (815 – 117) = Rs. 698.
Question: 7
Deepak invested an amount of Rs.21250 for 6 years. At what rate of simple interest will be obtain the total amount of Rs.26350 at the end of 6 years?
(A) 4 p.c.p.a
(B) 5 p.c.p.a
(C) 6 p.c.p.a
(D) 8 p.c.p.a
Ans: A
P = Rs. 21250,
S.I. = Rs. (26350 – 21250) = Rs. 5100,
T= 6 years
∴ Rate = $$({100 × 5100} / {21250 × 6})%$$ = 4%.
Question: 8
What would be the simple interest obtained on an amount of Rs.5760 at the rate of 6 p.c.p.a after 3 years?
(A) Rs. 1036.80
(B) Rs. 1063.80
(C) Rs. 1336.80
(D) Rs. 1666.80
Ans: A
P = Rs. 5760, R = 6%, T = 3 years.
∴ S.I. = Rs. $$({5760 × 6 × 3} / {100})$$ = Rs. 1036.80.
Question: 9
Asmita invests an amount of Rs.9534 @ 4 p.c.p.a. to obtain a total amount of Rs.11442 on simple interest after a certain period. For how many years did she invest the amount to obtain the total sum?
(A) 2 years
(B) 3 years
(C) 4 years
(D) 5 years
Ans: D
P = Rs. 9534, S.I. = Rs. (11442 – 9534) = Rs. 1908, R = 4%.
∴ Time = $$({100 × 1908} / {9534 × 4})$$yrs = $$({47700} / {9534})$$yrs = 5 yrs.
Question: 10
A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a in 5 years. What is the sum?
(A) Rs. 4462.50
(B) Rs. 8900
(C) Rs. 8925
(D) Rs. 9025
Ans: C
Principal = Rs. $$({100 × 4016.25} / {9 × 5})$$ = Rs. $$({401625} / {45})$$ = Rs. 8925.
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