Question

Aman lends ₹1000 in four sums. If he gets 3% for ₹200, 3½% for ₹400, and 5% for ₹250, what percent must he get for the remainder, if his average interest is ₹3.85%?

(a) 10%
(b) 4%
(c) 8%
(d) 6%​

Answer 1

Answer:

4%

Explanation:

remainder=1000-(200+400+250)=150

total intrest 3.85%of 1000=38.5years

let intrest of remaining ₹ 150 be x%

(3%of 200) +(3.5% of 400) +(5% of 250)+ (x% of 150)=

38.5

6+14+12.5+x*150/100=38.5

32.5 +1.5x=38.5

1.5x=6

then finally ,,

x=4%