20% of 50% is what percentage of 25 % of 40 %

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Q. In a group of

20

singers and

40

dancers,

20 %

of the singers are less than

25

years old and

40 %

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25

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If a DNA has 20% adenine then what will be the percentage of guanine , show it with necessary calculations. Options are ---

A. 20%

B. 30%

C. 40%

D. 50%

Q. The percentage of literate females between the ages of 15 years to 45 years in a village is recorded as follows.

Class	15 $-$ 20	20 $-$ 25	25 $-$ 30	30 $-$ 35	35 $-$ 40	40 $-$ 45
Percentage	80	73	61	52	47	40

Draw a frequency polygon.

Question 5

In a scout camp, 40 % of the scouts were from Gujarat state and 20 % of these were from Ahmedabad. The percentage of scouts in the camp from Ahmedabad is
(a) 25 %
(b) 32.5 %
(c) 8 %
(d) 50 %

Q. 30% of the crowd at a mall is > 25 years and 80% of the crowd at the mall is <50 years. 20% of the crowd visits bantaloons. If 20% of the crowd above the age of 50 visitbantaloons, then what percentage of bantaloon visitors are < 50 years?

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