**(1)** A sum of Rs. 900 amounts to Rs. 1080 in 2 years at simple interest. What is the rate of interest?

- (a)15 Percentage
- (b)7 Percentage
- (c)10 Percentage
- (d)12 Percentage

**(2)** If a sum of money at simple interest doubles in 5 years, what is the rate of interest?

- (a)10 Percentage
- (b)20 Percentage
- (c)30 Percentage
- (d)15 Percentage

**(3)** How long will it take for a sum of money to triple itself at 5% p.a. simple interest?

- (a)10 Years
- (b)15 Years
- (c)17 Years
- (d)20 Years

**(4)** A sum of money amounts to Rs. 6200 in 2 years and Rs. 6440 in 3 years. What is the rate of interest?

- (a)4 Percentage per Annum
- (b)5 Percentage per Annum
- (c)6 Percentage per Annum
- (d)7 Percentage per Annum

**(5)** Ms. Walker invested a sum of Rs. 8000, part in Scheme X at 7% p.a. and the rest in Scheme Y at 10% p.a. If the total interest earned after 3 years is Rs. 2140, how much did she invest in Scheme Y?

- (a)3250 Rupees
- (b)3750 Rupees
- (c)4000 Rupees
- (d)3500 Rupees