Question

12. A person deposited 500 for 4 yr and * 600 for 3 yr at the same rate of simple interest in a bank. Altogether he received * 190 as interest. The rate of simple interest per annum was RRB NTPC (Phase-1) 2016 (1) 4% (2) 5% (3) 2% (4) 3%

11th - 12th Class

Maths

Solution

4.0 (1 ratings)

Xet x be the interest. Crist anount, ( left(500 times frac{x}{100}right) times 4=20 x ) On end anount ( left(600 times frac{x}{100}right) times 3=18 x ) Total: ( 20 x+18 x=190 ) 38 ( x=190 ) ( therefore x=5 cdot 1 . )