What sum (in ₹) will earn a simple interest of ₹840 in 3 years at 20% per year rate of interest?

Correct option is B

Given:
Simple Interest (SI) = ₹840
Time (T) = 3 years
Rate (R) = 20%
Formula Used:
P = $$\frac{SI \times 100}{R \times T}$$​​
Solution:
​$$P = \frac{840 \times 100}{20 \times 3}\\ \ \\P = \frac{84000}{60}$$​​
P = ₹1400
So the correct answer is (b)