MCQ Questions

Question No. 1

Fill in the blanks:

Answer :

(a) A ratio can be expressed as a _______.

(b) _________ is the simplest form of 80/160.

(c) The first and the fourth terms are called ________ terms.

Question No. 2

True or False:

Answer :

(a) The second and the third terms are called extreme terms.

(b) There are about 16 kilometers in 10 miles.

(c) The term percentage is a ratio or a number that is expressed as a fraction of 100.

Question No. 3

One word answer:

Answer :

(a) What do we call the fractions with the denominator 100?

(b) How many quantities are said to be in continued proportion?

(c) What is an equality of two ratios called?

Question No. 4

Find the ratio of :

Answer :

(i) 45 to 60

(ii) 72 to 84

(iii) 36 minute to 1 hour

(iv) 15 kg : 30g

(v) 24 m to 96 cm

(vi) 40 paise to Rs. 2

Question No. 5

Find the ratio of the following in the simplest form :

Answer :

(i) 100 to 25

(ii) 60 to 80

(iii) 330 : 550

(iv) 0.2 : 0.8

(v) 1 cm : 1 mm

(vi) 1 hour : 20 minutes

(vii) 8 l to 560 ml

Question No. 6

Numericals:

Answer :

1. Three-fourth of the workers in a factory are men while the remaining one-fourth are women. Find the ratio of the male workers to the female workers in the factory.

2. Reshma and Sonali have Rs.128 and Rs.192 respectively. Express the amounts they have as a ratio in the simplest form.

3. A earns 3 times as much as B. If B earns Rs.1500 then (i) How much does A earn ? (ii) What is the ratio between the earnings of B and A ?

4. Find the ratio of the price of coffee to that of tea when coffee costs Rs.24 per 100g and tea costs Rs.80 per kilogram.

5. The number of boys and girls in a school are 1168 and 1095 respectively. Express the ratio of the number of boys to that of the girls in the simplest form.

6. Length and breadth of a rectangular field are 20 m and 15 m respectively. Find the ratio of the length to the breadth of the field.

7. The ratio of copper and zinc in an alloy is 5 : 3. If the weight of copper in the alloy is 30.5 grams. Find the weight of zinc in the alloy.

Question No. 7

Determine and state which rows have a different ratio of boys to balls.

Answer :

Question No. 8

Which ratio is greater?

Answer :

(i) 7 : 8 or 2 : 3

(ii) 9 : 16 or 4 : 11

(iii) 8 : 15 or 7 : 13

(iv) 7 : 21 or 2: 5

Question No. 9

Which ratio is smaller?

Answer :

(i) 10 : 7 or 22 : 15

(ii) 11 : 14 or 2 : 5

(iii) 1 : 7 or 5 : 22

(iv) 3 : 11 or 2 : 15

Question No. 10

Solve:

Answer :

1. Divide Rs.120 between Saroj and Sonal in the ratio 3 : 5.

2. Cost of a dozen pens is Rs.180 and cost of 8 ball pens is Rs.56. Find the ratio of the cost of a pen to the cost of a ball pen.

3. Divide 20 pens between Sheela and Sangeeta in the ratio of 2 : 3.

4. A and B purchased an article for Rs.500. If A paid Rs.300 and the rest was paid by B, what is the ratio of amounts paid by A and B?

5. Divide Rs.1200 among A, B and C in the ratio 2 : 3 : 5.

There are 28 boys and 36 girls in a party. Find the ratio of (i) Boys to girls (ii) girls to total number of children

Question No. 11

Determine if the following are in proportion:

Answer :

Question No. 12

Find x in each of the following proportion :

Answer :

(i) x : 3 : : 57 : 19

(ii) 66 : 22 : : x : 8

(iii) 18 : x = 54 : 18

(iv) 5 : 35 : : x : 14

(v) 80 : 100 : : 84 : x

(vi) 10 : 15 : : 12 : x

Question No. 13

Write true (T) or false (F) against the following statements:

Answer :

(i) 21 : 35 = 24 : 40

(ii) 66 : 99 = 38 : 57

(iii) 15 : 20 = 55 : 44

(iv) 15l : 10kg = 25l : 20kg

Question No. 14

The quantities a and b are called terms of the ratio, a is called the first term or _________.

Answer :

antecedent

consequent

none of these

Question No. 15

We denote ________ using the symbol (:).

Answer :

ratio

proportion

integer

Question No. 16

As a ratio, we read 1/3 as “1 to 3”, and not 1/3 as ______.

Answer :

one-third

one-fourth

one-fifth

Question No. 17

The quantities a and b are called terms of the ratio, b is called the second term or _________.

Answer :

antecedent

consequent

fraction

Chapter

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