(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

David opened a Recurring Deposit Account in a bank and deposited Rs. 300 per month for two years. If he received Rs. 7,725 at the time of maturity, find the rate of interest per annum.

Pramod deposits Rs. 600 per month in a Recurring Deposit Account for 4 years. If the rate of interest is 8% per year; calculate the maturity value of his account.

Ritu has a Recurring Deposit Account in a bank and deposits Rs. 80 per month for 18 months. Find the rate of interest paid by the bank if the maturity value of the account is Rs. 1,554.

The maturity value of an R.D. Account is ₹ 16176. If the monthly instalment is ₹ 400 and the rate of interest is 8%; find the time (period) of this R.D Account.

Mr. Bajaj needs Rs. 30,000 after 2 years. What least money (in multiple of 5) must he deposit every month in a recurring deposit account to get required money at the end of 2 years, the rate of interest being 8% p.a.?

Rishabh has the recurring deposit account in a post office for 3 years at 8% p.a. simple interest. If he gets Rs 9,990 as interest at the time of maturity, find:

1) The monthly instalment.

2) The amount of maturity.

Gopal has a cumulative deposit account and deposits Rs. 900 per month for a period of 4 years he gets Rs. 52,020 at the time of maturity, find the rate of interest.

Deepa has a 4-year recurring deposit account in a bank and deposits Rs 1,800 per month. If she gets Rs 1,08,450 at the time of maturity, find the rate of interest.

Shahrukh opened a Recurring Deposit Account in a bank and deposited  Rs 800 per month for 1 1/2 years. If he received Rs 15084 at the time of maturity, Find the rate of interest per annum.

Peter has a recurring deposit account in Punjab National Bank at Sadar Bazar, Delhi for 4 years at 10% p.a. He will get Rs 6,370 as interest on maturity. Find

1. monthly installment
2. the maturity value of the account.

Solve the following quadratic equation by factorization:

`sqrt(6)x^2 - 4x - 2sqrt(6) = 0`

Solve of the following equations, giving answer up to two decimal places.

3x² – x – 7 =0

Solve:

`(x/(x + 2))^2 - 7(x/(x + 2)) + 12 = 0; x != -2`

Solve : x² – 11x – 12 =0; when x ∈ N

Solve x² – 4x – 12 =0; when x ∈ I

Solve  2x² – 9x + 10 =0; when x ∈ Q

Solve:

(a + b)²x² – (a + b)x – 6 = 0; a + b ≠ 0

Solve:

`1/p + 1/q + 1/x = 1/(x + p + q)`

Solve:

x(x + 1) + (x + 2)(x + 3) = 42

Solve:

`1/(x + 1) - 2/(x + 2) = 3/(x + 3) - 4/(x + 4)`