Revision

Revision

Percentages and its applications

Multiple Choice

Find the value of

25% of 150 km

• 37.5 km

• 22.5 km

Multiple Choice

Last year Ravi weighed 75kg. This year he weighed 90kg. With what percentage did his weight increase?

• 30%

• 20%

Multiple Choice

Father gave me some money. I could choose between 15% of Rs.1,500 or 25% of Rs.1,000. Which amount did I choose?

• 15% of Rs.1500

• 25% of Rs.1000

Formulas in solving problems involving profit & loss

Profit = Selling price – Cost price

          or

Profit = SP - CP

Loss = Cost price – Selling price

      or

Loss = CP – SP

Profit % = Profit/CP x 100

Loss % = loss/CP x 100

Multiple Choice

100 oranges are bought for Rs. 350 and sold at the rate of Rs. 48 per dozen. Find the gain or loss percentage.

• 14.29% gain

• 14.29% loss

Fill in the Blanks

A man buys a cycle for Rs. 1400 and sells it at a loss of 15%.

The selling price is

S.I = P x R x T

A = P + S.I

Multiple Choice

Namita borrowed Rs 50,000 for 3 years at the rate of 3.5% per annum. Find the interest accumulated at the end of 3 years.

• Rs.5520

• Rs. 5250

Multiple Choice

A man invested Rs. 20,000 for 2.5 years at the rate of 6% p.a.

Find how much money he earned.

• Rs. 23000

• Rs.25000

Circles

Fill in the Blanks

Name a

i) semicircle

ii) centre

iii) radii

iv) diameters

v) chords

Multiple Select

What information is given by the graph and what is the scale taken?

• No. of baby animals on a steppe

• Scale : 1 unit length= 10 animals

• No. of animals in a steppe

• Scale:1 unit length = 5 bay animals