Direct & Inverse Proportions Quiz 1

Question 1

If x is directly proportional to y then which of the following is correct ?

Accepted Answer

$\frac{x}{y}=k$

Answer

$x\propto\frac{1}{y}$

Answer

$xy=\frac{1}{k}$

Answer

x = y

Question 2

If x is inversely proportional to y then which of the following is true?

Accepted Answer

xy = k

Answer

$\frac{x}{y}=k$

Answer

$\frac{1}{x}=\frac{1}{y}$

Answer

xy = x + y

Question 3

If the cost of 65 packets of tea is Rs 2600, then the cost of 75 packets of tea is

Accepted Answer

Rs 3000

Answer

Rs 2000

Answer

Rs 2500

Answer

Rs 3500

Question 4

If A pump can take 5 hrs to fill a 50 l of tank then how much time to take to fill a 75 liters of tank for the same pump?

Accepted Answer

$7\,\frac{1}{2}$ hrs

Answer

7 hrs

Answer

$5\,\frac{1}{2}$ hrs

Answer

$6\,\frac{1}{2}$ hrs

Question 5

The cost of 20 m of cloth is Rs 1600 then the cost of 24.5 m of cloth is

Accepted Answer

Rs 1960

Answer

Rs 1970

Answer

Rs 1860

Answer

Rs 1260

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