10th Class Maths MCQ with Answers Chapter 3

In ratio a : b , a is called.

Precedent

Anfecedent

None of these

Relation

If u/v =v/w = k then

u = w²k

u = v²k

u = wk²

u = vk²

Value of x in proportion 4 :x::5:15

75/4

12

4/3

3/4

A third proportional of 12 and 4, is……………………

4/3

16

3/4

12

If three quantities a, b and c are related as a : b :: b: c Then b is called:

continued proportion

mean proportion

second proportion

third proportion

Find x in proportion 4 :x::5:15

4/3

3/4

12

75/4

If a hockey team win 4 game and losses 5, them the ration of the games won to the games lost is:

4 : 4

5 : 5

4 : 5

5 :4

Joint variation of y? x and y? 1/z is:

y? z/x

none of these

y = k z/x

y? x/z

If 5a/3x = 15b/y , then ay = ……………….

9bx /y

9y/9b

9 bx

5ay = 45 bx

The relation between radius and circumference of a circle is an example of….

Variation

Inverse variation

Joint variation

Direct variation