Mr. Thomas invested Rs. 13,900 in two different plans A and B, each paying a simple interest rate of 14 percent per annum and 11 percent per annum, respectively. What was the amount invested in Scheme B if the total amount of simple interest earned in two years was Rs. 3508?
A. Rs. 6400
B. Rs. 6500
C. Rs. 7200
D. Rs. 7500
Answer:A
Mr. Thomas invested Rs. 13,900 in two different plans A and B, each paying a simple interest rate of 14 percent per annum and 11 percent per annum, respectively. What was the amount invested in Scheme B if the total amount of simple interest earned in two years was Rs. 3508?
A. Rs. 6400 B. Rs. 6500 C. Rs. 7200 D. Rs. 7500
Explanation: Allow Rs. x to be invested in Scheme A and Rs. y to be invested in Scheme B. (13900 - x). X x 14 x 2/100 + (13900 - x) x 11 x 2/100 = 3508 ,28x - 22x = 350800 - 22x- (13900 x 22) 45000 divided by 6.7500 is the value of the variable x.As a result, the total amount invested in Scheme B equals Rs. (13900 - 7500) = Rs. 6400.