Rajni and Mohini deposited ₹ 3000 and ₹ 4000 in a company at the rate of 10% per annum for 3 years and 2 1/2 years respectively. The difference of the amounts received by them will be
(a) ₹ 100
(b) ₹ 1000
(c) ₹ 900
(d) ₹ 1100
Rajni: SI = \(\dfrac{3000 \times 10 \times 3}{100} = 900\). Amount = 3900. Mohini: SI = \(\dfrac{4000 \times 10 \times 2.5}{100} = 1000\). Amount = 5000. Difference = 1100.