Secondary School (English Medium) (5 to 8) कक्षा ८ - CBSE Question Bank Solutions

The adjacent figure HOPE is a parallelogram. Find the angle measures x, y and z. State the properties you use to find them.

The following figure GUNS is a parallelogram. Find x and y. (Lengths are in cm)

In the above figure both RISK and CLUE are parallelograms. Find the value of x.

Find the measure of ∠P and ∠S, if `bar(SP) || bar(RQ)` in the following figure. (If you find m∠R, is there more than one method to find m∠P?).

Name the quadrilaterals whose diagonals  bisect each other

Kamala borrowed Rs 26400 from a Bank to buy a scooter at a rate of 15% p.a. compounded yearly. What amount will she pay at the end of 2 years and 4 months to clear the loan?

(Hint: Find A for 2 years with interest is compounded yearly and then find SI on the 2^nd year amount for `4/12` years.)

Fabina borrows Rs 12,500 at 12% per annum for 3 years at simple interest and Radha borrows the same amount for the same time period at 10% per annum, compounded annually. Who pays more interest and by how much?

I borrowed Rs 12000 from Jamshed at 6% per annum simple interest for 2 years. Had I borrowed this sum at 6% per annum compound interest, what extra amount would I have to pay?

Vasudevan invested Rs 60000 at an interest rate of 12% per annum compounded half yearly. What amount would he get

(1) after 6 months?

(2) after 1 year?

Arif took a loan of Rs 80,000 from a bank. If the rate of interest is 10% per annum, find the difference in amounts he would be paying after `1 1/2` years if the interest is

(1) Compounded annually

(2) Compounded half yearly

Maria invested Rs 8,000 in a business. She would be paid interest at 5% per annum compounded annually. Find.

1) The amount credited against her name at the end of the second year

2) The interest for the 3^rd year.

Find the amount and the compound interest on Rs 10,000 for `1 1/2` years at 10% per annum, compounded half yearly. Would this interest be more than the interest he would get if it was compounded annually?

Find the amount which Ram will get on Rs 4,096, he gave it for 18 months at `12 1/2` %per annum, interest being compounded half yearly.

Multiply the binomials.

(2x + 5) and (4x − 3)

Multiply the binomials.

(y − 8) and (3y − 4)

Multiply the binomials.

(2.5l − 0.5m) and (2.5l + 0.5m)

Multiply the binomials.

(a + 3b) and (x + 5)

Multiply the binomials.

(2pq + 3q²) and (3pq − 2q²)

Multiply the binomials.

`(3/4 a^2 + 3b^2) and 4(a^2 - 2/3 b^2)`

Find the Product.

(5 − 2x) (3 + x)