The simple interest on Rs 10 for 4 months @3 paisa per rupee per month is

1.60 rupee 1.40 rupee 1.20 rupee 2.40 rupee

1.20 rupee

The formulae for simple interest is as follows: S.I = PTR/100 = (10 x 4 x 3)/100 = 12/10 = 1.20 rupees. OR Simple Interest: ⇒ 3 paisa on Rs.1 in 01 months ⇒ 30 paisa on Rs.10 in 01 months ⇒ 120 paisa on Rs.10 in 04 months Therefore, answer is 120 paisa or 1.20 rs.