20 boys and 25 girls from a group of social workers. During their membership drive, the same number of boys and girls joined the group (eg, if 7 boys joined, 7 girls joined). How many members does the group have now, if the ratio of boys to girls is 7: 8?

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BANK PO Exam (Bank Of Baroda) 2008 click here to view all questions

20 boys and 25 girls from a group of social workers. During their membership drive, the same number of boys and girls joined the group (eg, if 7 boys joined, 7 girls joined). How many members does the group have now, if the ratio of boys to girls is 7: 8?

A75

B65

C70

D60

Nithin ? Aug 11 '2022 at 21:43

Correct answer is: 75

Explanation:

Let the no. of increased boys and girls be x each
Thus \(\frac{(20 + x)}{(25 + x)} = \frac{7}{8}\)
Thus x = 15
Hence number of members of group = 20 + 15 + 25 + 15 = 75

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Correct answer is: 75 Explanation: Let the no. of increased boys and girls be x each Thus \(\frac{(20 + x)}{(25 + x)} = \frac{7}{8}\) Thus x = 15 Hence number of members of group = 20 + 15 + 25 + 15 = 75 Nithin ? answered Aug 11 '2022 at 21:43 All Comments

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