Solution
Expression = $$\frac{61681\times61681-31681\times31681}{30000}$$
= $$\frac{(61681)^2-(31681)^2}{30000}$$
Using, $$a^2-b^2=(a-b)(a+b)$$
= $$\frac{(61681-31681)\times(61681+31681)}{30000}$$
= $$\frac{30000\times93362}{10200}=93362$$
=> Ans - (C)
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
