state gov BSSC Group D (DST - Karyalay Parichari) Mock Test Series 2025 Quantitative Aptitude Interest Simple Interest
If a certain sum of money amounts to Rs. 450 in 2 years and Rs. 630 in 4 years at simple interest, find the principal.
1
Rs. 90
2
Rs. 180
3
Rs. 360
4
Rs. 270