START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>SOME NCERT TEXTBOOK QUESTIONS>Q 6

EASY

8th CBSE

IMPORTANT

Earn 100

Two persons could fit new windows in a house in $3$ days?

How many persons would be needed to fit the windows in one day?

Important Questions on Direct and Inverse Variation

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>EXEMPLAR PROBLEMS>Q 1

Assuming land to be unifromely fertile, the area of land and the yield on it vary:

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>EXEMPLAR PROBLEMS>Q 2

If

12

pumps can empty a reservoir in

20

hours, then time required by

45

such pumps to empty the same reservoir is _____ hours.

HARD

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>EXEMPLAR PROBLEMS>Q 3

If the area occupied by

15

postal stamps is

60 {cm}^{2}

, then the area occupied by

120

such postal stamps will be _____

{cm}^{2}

.

MEDIUM

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>EXEMPLAR PROBLEMS>Q 4

If

p

and

q

are in inverse proportion then

(p + 2)

and

(q - 2)

are also in inverse proportion.

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>EXEMPLAR PROBLEMS>Q 5

The mass of an aluminium rod varies directly with its length. If a

16 cm

long rod has mass of

192 g

, find the length of the rod whose mass is

105 g

.

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>EXEMPLAR PROBLEMS>Q 6

At a particular time, the length of the shadow of Qutub Minar whose height is

72 m

is

80 m

. What will be the height of an electric pole, the length of whose shadow at the same time is

1, 000 cm

?

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>EXEMPLAR PROBLEMS>Q 7

A bowler throws a cricket ball at a speed of

120 km / h

. How long does this ball take to travel a distance of

20 m

to reach the batsman?

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 9 - Direct and Inverse Variation>EXEMPLAR PROBLEMS>Q 8

There are

20 g

of protein in

75 g

of sauted fish, How many grams of protein is in

225 g

of that fish?