In a city 40% of the adults are illiterate while 85% of the children are literate If the ratio of the adults to that of the children is 2:3 then what percent of the population is literate?

A

20%

B

25%

C

50%

D

60%

E

75%

Medium

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Solution

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Correct option is

E

75%

Let the number of
adults and children be 2x and 3x $∴$ Literate population = 60% of 2x + 85% of 3x=$415 x$ $∴$ Required %
= $415 x$$×$$5x1 $$×$ 100% = 75 %