## Quantitative Aptitude

### Simple Interest & Compound Interest

Question
6 out of 24

Ravi invested a total amount of Rs. 65000 in three different scheme A, B, C with rate of interest 12 p.c. p.a., 16 p.c.p.a. and 18 p.c.p.a. respectively and earned a total interest of Rs. 10,180 in one year. If the amount invested in A is 72 % of the amount invested in C then what was the amount invested in scheme B.

 A 15000 B 25000 C 22000 D 18000 E cannot determine

Ans. C Suppose amount invested in scheme A = x

Suppose amount invested in scheme B = y

Suppose amount invested in scheme C = z

x + y + z = 65000 ----- (I)

From question

X =72% of z = ------ (II)

So, 12x + 16y +18z = 1018000 6x + 8y + 9z = 509000 ------ (III)

From (I), (II) and (III) we get

------ (IV)

+ 8y + 9z = 509000 + 8y = 509000 ------- (V)

From (IV) we have + 8y = 520000 ------- (VI)

(VI) – (V) =11000

11z = 275000 z = 25000

y = 22000