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Express each of the following as a fraction:

(i) 48% (ii) 220% (iii) 2.5%

Express each of the following as a decimal:

(i) 6% (ii) 72% (iii) 125%

Express each of the following as a percentage:

(i) (ii) (iii)

Convert the ratio 4 : 5 to percentage.

Express 125% as a ratio.

Which is largest inand

What per cent of 150 is 96?

What per cent of 5 kg is 200 g?

What per cent of 2 litres is 250 mL?

Findof 3600.

If 16% of number is 72, find the number.

A man saves 18% of his monthly income. If he saves Rs. 3780 per month, what is his monthly income?

A football team wins 7 games, which is 35% of total games played. How many games were played in all?

Amit was given an increment of 20% on his salary. If his new salary is Rs. 30600, what was his salary before the increment?

Sonal attended her school on 204 days in a full year. If her attendance is 85%, find the number of days on which the school was opened.

A’s income is 20% less than that of B. By what per cent is B’s income more than A’s?

The price of petrol goes up by 10%. By how much per cent must a motorist reduce the consumption of petrol so that the expenditure on it remains unchanged?

The population of a town increases by 8% annually. If the present population is 54000, what was it a year ago?

The value of a machine depreciates every year by 20%. If the present value of the machine be Rs. 160000, what was its value last year?

An alloy contains 40% copper, 32% nickel and rest zinc. Find the mass of zinc in one kg of the alloy.

Balanced diet should contain 12% of proteins, 25% of fats and 63% of carbo-hydrates. If a child needs 2600 calories in his food daily, find in calories the amount of each of these in his daily food intake.

Ans. Proteins312 calories, fats650 calories, carbohydrates1638 calories

Gunpowder contains 75% nitre and 10% sulphur. Find the amount of gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.5 kg sulphur?

Divide Rs. 7000 among A, B and C such that A gets 50% of what B gets and B gets 50% of what C gets.

Find the percentage of pure gold in 22-carat gold, if 24-carat gold is 100% pure.

The salary of an officer is increased by 25%. By what per cent should the new salary be decreased to restore the original salary?

when expressed as a percentage, is

of a number is 9. The number is

What per cent of 90 is 120?

What per cent of 10 kg 250 g?

of

?% of 400 = 60

(180% of ?)

20% or Rs. 800 = ?

In an examination, Nitin gets 98 marks. This amounts to 56% of the maximum marks.

What are the maximum marks?

A number is first increased by 10% and then reduced by 10%. The number

A period of 4 hours 30 min is what per cent of a day?

In an examination, 65% of the total examines passed. If the number of failures is 420, the total number of examines is

A number exceeds 20% of itself by 40. The number is

A number decreased byof itself by 87. The number is

is what per cent of

One-third of 1206 is what per cent of

x% of y is y% of

What per cent ofis

Express:

24% as a fraction;

105% as a decimal;

4 : 5 as a percentage;

56% as a ratio.

If 34% of a number is 85, find the number.

The value of a machine depreciates every year by 10%. If the present value of the machine is Rs.54000, what was its value last year?

An alloy contains 30% copper, 42% nickel and rest zinc. Find the mass of zinc in 1 kg of alloy.

In a class, 60% of the total number of students are boys and there are 14 girls. How many students are there in the class?

A number decreased by 30% gives 84. The number is

(?)% of 320 is 48?

What per cent of 45 is 54?

A number exceeds 25% of itself by 60. The number is

5% of which number is 12?

Fill in the blanks.

(i)% of Rs.1200 = ……..

(ii) 240 mL is……% of 3 L.

(iii) If% of 35 is 42, then=……..

(iv)

(v) 120 = (……)% of 80.

Write ‘T’ for true and ‘F’ for false for each of the following:

(i) 6% of 8 is 48.

(ii) 6 : 5 = 30%.

(iii)= 60%.

(iv) 6 hours = 25% of a day.