The sum invested in Scheme B is thrice the sum invested in Scheme A. The investment in Scheme A is made for 4 years at 8\% p.a. simple interest and in Scheme B for 2 years at 13\% p.a. simple interest. The total interest earned from both the schemes is ₹ 1320. How much amount was invested in Scheme A?
(a)₹ 1200
(b)₹ 1140
(c)₹ 960
(d)₹ 1500
Answer
Answer (as printed): A
Explanation
Let the amount invested in scheme A be ` x and that in B be ` 3x. x × 4 × 8 3x × 2 × 13 Then, + = 1320 100 100 32 x 78x or, + = 1320 100 100 110x or, = 1320 100 1320 × 100 ∴ x= = ` 1200 110 660 QUANTITATIVE APTITUDE
Explanation as extracted from the printed page; notation may be imperfect.