Find the simple interest and the amount when:
Principal = ₹ 2650, rate = 8% p.a. and time = 2 ½ years.
Principal = ₹ 1500, rate = 12% p.a. and time = 3 years 3 months.
Find the time when:
Principal = ₹ 6400, SI = ₹ 1152 and rate = 6% p.a.
Principal = ₹ 5000, Amount = ₹ 6450 and rate = 12% p.a.
Find the rate when:
Principal = ₹ 8250, SI = ₹ 1100 and time = 2 years.
Principal = ₹ 3560, amount = ₹ 4521.20 and time = 3 years.
Mark against the correct answer in each of the following:
The simple interest on ₹ 6250 at 4% per annum for 6 months is
(a) ₹ 125 (b) ₹ 150 (c) ₹ 175 (d) ₹ 135
Mark against the correct answer in the following:
A sum amounts to ₹ 3605 in 219 days at 5% per annum. The sum is
(a) ₹ 3250 (b) ₹ 3500 (c) ₹ 3400 (d) ₹ 3550
At what rate percent per annum, simple interest will a sum double itself in 10 years?
(a) 8% (b) 10% (c) 12% (d) 12 ½ %
The simple interest at x % per annum for x years will be ₹ x on a sum of
(a) ₹ x (b) ₹ 100x (c) ₹ (100/x) (d) ₹ \left(100 / x^{2}\right)