state gov WBPSC Miscellaneous Services Mock Test 2023 Quantitative Aptitude Interest Simple Interest
A certain sum of money lent out at simple interest amounts to Rs. 12,600 in 2 years and Rs. 16,200 in 4 years. The rate per cent per annum is:
1
25%
2
\(12\frac{6}{7}\%\)
3
\(17\frac{1}{2}\%\)
4
20%