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Question Bank Solutions for ICSE Class 8 - CISCE - Mathematics

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Mathematics
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Evaluate:

`[(1/4)^-3-(1/3)^-3]÷(1/6)^-3`

[0.012] Exponents
Chapter: [0.012] Exponents
Concept: Concept of Exponents

Evaluate:

`[(-3/4)^-2]^2`

[0.012] Exponents
Chapter: [0.012] Exponents
Concept: Concept of Exponents

Evaluate:

`{(3/5)^-2}^-2`

[0.012] Exponents
Chapter: [0.012] Exponents
Concept: Concept of Exponents

Evaluate:

`(5^-1xx3^-1)÷6^-1`

[0.012] Exponents
Chapter: [0.012] Exponents
Concept: Concept of Exponents

Megha bought 10 note-books for Rs.40 and sold them at Rs.4.75 per note-book. Find, her gain percent.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

A fruit-seller buys oranges at 4 for Rs.3 and sells them at 3 for Rs.4 Find his profit percent.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

Find the square of 59.

[0.013000000000000001] Squares and Square Root
Chapter: [0.013000000000000001] Squares and Square Root
Concept: Concept of Square Roots

Find the square of 6.3

[0.013000000000000001] Squares and Square Root
Chapter: [0.013000000000000001] Squares and Square Root
Concept: Concept of Square Roots

Find the square of 15

[0.013000000000000001] Squares and Square Root
Chapter: [0.013000000000000001] Squares and Square Root
Concept: Concept of Square Roots

A man buys a certain number of articles at 15 for Rs. 112.50 and sells them at 12 for Rs.108. Find ;
(i) his gain as percent;
(ii) the number of articles sold to make a profit of Rs.75.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

An article is bought from Jaipur for Rs. 4,800 and is sold in Delhi for Rs. 5,820. If Rs. 1,200 is spent on its transportations, etc. ; find he loss or the gain as a percent.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

A boy buys an old bicycle for Rs. 162 and spends Rs. 18 on its repairs before selling the bicycles for Rs. 207. Find his gain or loss percent.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

The selling price of a sofa-set is `4/5` times of its cost price. Find the gain or the loss as a percent.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

The cost price of an article is `4/5` times of its selling price. Find the loss or the gain as a percent.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

A shopkeeper sells his goods at 80% of their cost price. Find the percent gain or losses?

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

The cost price of an article is 90% of its selling price. What is the profit or the loss as a percent ?

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

The cost price of an article is 30 percent less than its selling price. Find, the profit or loss as a percent.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

A shop-keeper bought 300 eggs at 80 paise each. 30 eggs were broken in a transaction and then he sold the remaining eggs at one rupee each. Find, his gain or loss as a percent.

[0.022000000000000002] Profit, Loss and Discount
Chapter: [0.022000000000000002] Profit, Loss and Discount
Concept: Concept of Discount

Find the smallest number by which 10368 be divided, so that the result is a perfect square. Also, find the square root of the resulting numbers.

[0.013000000000000001] Squares and Square Root
Chapter: [0.013000000000000001] Squares and Square Root
Concept: Concept of Square Roots

Find the square root of 0.1764

[0.013000000000000001] Squares and Square Root
Chapter: [0.013000000000000001] Squares and Square Root
Concept: Concept of Square Roots
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