Secondary School (English Medium) (5 to 8) Class 7 - CBSE Question Bank Solutions for Mathematics

A table cover of dimensions 3 m 25 cm × 2 m 30 cm is spread on a table. If 30 cm of the table cover is hanging all around the table, find the area of the table cover which is hanging outside the top of the table. Also find the cost of polishing the table top at ₹ 16 per square metre.

How much distance, in metres, a wheel of 25 cm radius will cover if it rotates 350 times?

Find the following product:

(−15) × 0 × (−18)

A garden is 90 m long and 75 m broad. A path 5 m wide is to be built outside and around it. Find the area of the path. Also find the area of the garden in hectare

Two cross roads, each of width 10 m, cut at right angles through the centre of a rectangular park of length 700 m and breadth 300 m and parallel to its sides. Find the area of the roads. Also find the area of the park excluding cross roads. Give the answer in hectares.

Tell what is the profit or loss in the following transaction. Also find profit percent or loss percent in given case.

Gardening shears bought for ₹ 250 and sold for ₹ 325.

Tell what is the profit or loss in the following transaction. Also find profit percent or loss percent in given case.

A refrigerator bought for ₹ 12,000 and sold at ₹ 13,500.

Tell what is the profit or loss in the following transaction. Also find profit percent or loss percent in given case.

A cupboard bought for ₹ 2,500 and sold at ₹ 3,000.

Tell what is the profit or loss in the following transaction. Also find profit percent or loss percent in given case.

A skirt bought for ₹ 250 and sold at ₹ 150.

A trader bought 25 boxes of soap from a retailer at Rs.180 per box. If each box contains 12 bars of soaps and the trader sells the soap pieces at Rs. 18 per bar, find the profit or loss percent.

The cost of a flower vase is Rs. 120. If the shopkeeper sells it at a loss of 10%, find the price at which it is sold.

Selling price of a toy car is Rs. 540. If the profit made by the shopkeeper is 20%, what is the cost price of this toy?

Convert the following: 50 cm² in mm²

Convert the following: 2 ha in m²

Convert the following: 10 m² in cm²

The successor of 0 × (–25) is 1 × (–25)

One measure of average global temperature shows how each year varies from a base measure. The table shows results for several years.

See the table and answer the following:

1. Order the five years from coldest to warmest.
2. In 1946, the average temperature varied by – 0.03°C from the base measure. Between which two years should 1946 fall when the years are ordered from coldest to warmest?

If a bicycle was bought for ₹ 650 and sold for ₹ 585, then the percentage of profit is 10.

In a furniture shop, 24 tables were bought at the rate of ₹ 450 per table. The shopkeeper sold 16 of them at the rate of ₹ 600 per table and the remaining at the rate of 400 per table. Find her gain or loss percent.

A tea merchant blends two varieties of tea in the ratio of 5 : 4. The cost of first variety is ₹ 200 per kg and that of second variety is ₹ 300 per kg. If he sells the blended tea at the rate of ₹ 275 per kg, find out the percentage of her profit or loss.