ICSE ICSE Class 8 - CISCE Question Bank Solutions

A shopkeeper marks his goods at 30 percent above the cost price and then gives a discount of 10 percent. Find his gain percent.

A ready-made garments shop in Delhi, allows a 20 percent discount on its garments and still makes a profit of 20 percent. Find the marked price of a dress which is bought by the shop-keeper for Rs.400.

At 12% discount, the selling price of a pen is Rs. 13.20. Find its marked price. Also, find the new selling price of the pen, if it is sold at 5% discount.

The cost price of an article is Rs. 2,400 and it is marked at 25% above the cost price. Find the profit and the profit percent, if the article is sold at a 15% discount.

Thirty articles are bought at Rs. 450 each. If one-third of these articles be sold at a 6% loss; at what price must each of the remaining articles be sold in order to make a profit of 10% on the whole?

The cost price of an article is 25% below the marked price. If the article is available at a 15% discount and its cost price is Rs. 2,400; find:
(i) Its marked price
(ii) its selling price
(iii) the profit percent.

Find a single discount (as a percent) equivalent to following successive discounts:
20% and 12%

Find a single discount (as a percent) equivalent to following successive discounts:
10%, 20% and 20%

Find a single discount (as a percent) equivalent to following successive discounts:
20%, 10% and 5%

Find the single discount (as a percent) equivalent to successive discounts of:
80% and 80%

Find the single discount (as a percent) equivalent to successive discounts of:
 60% and 60%

Find the single discount (as a percent) equivalent to successive discounts of:
60% and 80%

Evaluate: 37² – 36²

Evaluate: 101² – 100²

Without doing the actual addition, find the sum of:

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

Without doing the actual addition, find the sum of:

1 + 3 + 5 + 7 + 9 + ……………… + 39 + 41.

Without doing the actual addition, find the sum of:

1 + 3 + 5 + 7 + 9 + ………………… + 51 + 53

Write three sets of Pythagorean triplets such that each set has numbers less than 30.

Can a polyhedron have 8 faces, 26 edges, and 16 vertices?

Can a polyhedron have:
(i) 3 triangles only?
(ii) 4 triangles only?
(iii) a square and four triangles?