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1. TK. 800 becomes TK. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will TK. 800 become in 3 years?
- A. TK. 1020.80
- B. TK. 1020.80
- C. TK. 1020.80
- D. TK. 1020.80
Answer: Option C
Explanation:
Correct option is C)
(c) Principal =tk.800, Amount =tk.956
⇒S.I.=tk.956−tk.800=tk.156
Time =3 years ∴Rate%p.a.=800×3156×100=6.5.
Now, Principal =Rs.800,Rate%p.a.=10.5, Time =3 years
∴ Amount =tk.800+tk.(800×10.5×3/100)
=tk.800+Rs.252=tk.1052.
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