Interest on ₹ 12000 for 1 month at the rate of 10 % per annum is
(a) ₹ 1200
(b) ₹ 600
(c) ₹ 100
(d) ₹ 12100
Time = \(\dfrac{1}{12}\) year. SI = \(\dfrac{12000 \times 10 \times 1}{100 \times 12} = 100\).