Question

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 . )

# 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%

Solution