A
B
C
100

Two quantities A and B are in direct proportion with each other. What will happen to quantity B if quantity A is increased?

It will increase

100

State whether the following statement is True or False:

When speed is constant, distance covered and time are in direct variation.

True

100

State whether the following statement is True or False:

If m varies directly as n, then m=kn.

True

200

State whether the following statement is True or False:.

The time an object takes to cover a distance is directly proportional to the speed of the object.

False

Time is not directly proportional to speed

200

'm' varies directly as 'n' . If n = 200, then m =5.

Find 'm' if n = 900.

22.5

200

State whether the following statement is True or False:

The constant of proportionality is always a natural number.

False

300

The mass of an iron rod varies directly with its length. If a 6 cm long rod has a mass of 120 grams. What is the length of a rod whose mass is 180 grams?

9 cm

300

A truck needs 1 L of diesel to cover a distance of 24 km. How much diesel is required by the truck to cover a distance of 120 km?

5 L

300

What is the constant of variation in the following table?

x    4    16

y    0.5    2

8

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