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COMPARING QUANTITIES

299739 A survey of 40 children showed that 25% liked playing football. How many children not liked playing football?

1 10

2 30

3 5

4 20

COMPARING QUANTITIES

299740 225% is equal to:

1 9 : 4

2 4 : 9

3 3 : 2

4 2 : 3

Explanation:

9 : 4
We have, 225%
In percentage, $225 \times \frac{1}{100} = \frac{225}{100} = \frac{9}{4}$
$∴$ Required ratio = 9 : 4
Note: The sign of percentage (%) is removed dividing the number by 100.

COMPARING QUANTITIES

299765 Mark $(✓)$ against the correct answer in the following:
A number decreased by 8% gives 69. The number is:

1 80

2 75

3 85

4 None of these.

Explanation:

75
Let x be the required number, then
$= \frac{x \times (100 - 8)}{100} = 69$
$\Rightarrow \frac{x \times 92}{100} = 69$
$x = \frac{69 \times 100}{92} = 75$

COMPARING QUANTITIES

299759 If x% of $\frac{12}{5} is \frac{18}{25},$ then x =

1 30

2 40

3 72

4 50

Explanation:

30
$x % of \frac{12}{5} = \frac{18}{25}$
$\Rightarrow \frac{x}{10} \times \frac{12}{5} = \frac{18}{25}$
$\Rightarrow \frac{12 x \times 500}{500} = \frac{18 \times 500}{25}$
$\Rightarrow 12 x = 18 \times 20$
$\Rightarrow x = \frac{18 \times 20}{12}$
$\Rightarrow x = 30$
Hence, the correct option is (a).

COMPARING QUANTITIES

299739 A survey of 40 children showed that 25% liked playing football. How many children not liked playing football?

1 10

2 30

3 5

4 20

COMPARING QUANTITIES

299740 225% is equal to:

1 9 : 4

2 4 : 9

3 3 : 2

4 2 : 3

Explanation:

9 : 4
We have, 225%
In percentage, $225 \times \frac{1}{100} = \frac{225}{100} = \frac{9}{4}$
$∴$ Required ratio = 9 : 4
Note: The sign of percentage (%) is removed dividing the number by 100.

COMPARING QUANTITIES

299765 Mark $(✓)$ against the correct answer in the following:
A number decreased by 8% gives 69. The number is:

1 80

2 75

3 85

4 None of these.

Explanation:

75
Let x be the required number, then
$= \frac{x \times (100 - 8)}{100} = 69$
$\Rightarrow \frac{x \times 92}{100} = 69$
$x = \frac{69 \times 100}{92} = 75$

COMPARING QUANTITIES

299759 If x% of $\frac{12}{5} is \frac{18}{25},$ then x =

1 30

2 40

3 72

4 50

Explanation:

30
$x % of \frac{12}{5} = \frac{18}{25}$
$\Rightarrow \frac{x}{10} \times \frac{12}{5} = \frac{18}{25}$
$\Rightarrow \frac{12 x \times 500}{500} = \frac{18 \times 500}{25}$
$\Rightarrow 12 x = 18 \times 20$
$\Rightarrow x = \frac{18 \times 20}{12}$
$\Rightarrow x = 30$
Hence, the correct option is (a).

COMPARING QUANTITIES

299739 A survey of 40 children showed that 25% liked playing football. How many children not liked playing football?

1 10

2 30

3 5

4 20

COMPARING QUANTITIES

299740 225% is equal to:

1 9 : 4

2 4 : 9

3 3 : 2

4 2 : 3

Explanation:

9 : 4
We have, 225%
In percentage, $225 \times \frac{1}{100} = \frac{225}{100} = \frac{9}{4}$
$∴$ Required ratio = 9 : 4
Note: The sign of percentage (%) is removed dividing the number by 100.

COMPARING QUANTITIES

299765 Mark $(✓)$ against the correct answer in the following:
A number decreased by 8% gives 69. The number is:

1 80

2 75

3 85

4 None of these.

Explanation:

75
Let x be the required number, then
$= \frac{x \times (100 - 8)}{100} = 69$
$\Rightarrow \frac{x \times 92}{100} = 69$
$x = \frac{69 \times 100}{92} = 75$

COMPARING QUANTITIES

299759 If x% of $\frac{12}{5} is \frac{18}{25},$ then x =

1 30

2 40

3 72

4 50

Explanation:

30
$x % of \frac{12}{5} = \frac{18}{25}$
$\Rightarrow \frac{x}{10} \times \frac{12}{5} = \frac{18}{25}$
$\Rightarrow \frac{12 x \times 500}{500} = \frac{18 \times 500}{25}$
$\Rightarrow 12 x = 18 \times 20$
$\Rightarrow x = \frac{18 \times 20}{12}$
$\Rightarrow x = 30$
Hence, the correct option is (a).

COMPARING QUANTITIES

299739 A survey of 40 children showed that 25% liked playing football. How many children not liked playing football?

1 10

2 30

3 5

4 20

COMPARING QUANTITIES

299740 225% is equal to:

1 9 : 4

2 4 : 9

3 3 : 2

4 2 : 3

Explanation:

9 : 4
We have, 225%
In percentage, $225 \times \frac{1}{100} = \frac{225}{100} = \frac{9}{4}$
$∴$ Required ratio = 9 : 4
Note: The sign of percentage (%) is removed dividing the number by 100.

COMPARING QUANTITIES

299765 Mark $(✓)$ against the correct answer in the following:
A number decreased by 8% gives 69. The number is:

1 80

2 75

3 85

4 None of these.

Explanation:

75
Let x be the required number, then
$= \frac{x \times (100 - 8)}{100} = 69$
$\Rightarrow \frac{x \times 92}{100} = 69$
$x = \frac{69 \times 100}{92} = 75$

COMPARING QUANTITIES

299759 If x% of $\frac{12}{5} is \frac{18}{25},$ then x =

1 30

2 40

3 72

4 50

Explanation:

30
$x % of \frac{12}{5} = \frac{18}{25}$
$\Rightarrow \frac{x}{10} \times \frac{12}{5} = \frac{18}{25}$
$\Rightarrow \frac{12 x \times 500}{500} = \frac{18 \times 500}{25}$
$\Rightarrow 12 x = 18 \times 20$
$\Rightarrow x = \frac{18 \times 20}{12}$
$\Rightarrow x = 30$
Hence, the correct option is (a).

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