RRB NTPC 2014 Paper

Question : 67 of 100

Marks: +1, -0

One-seventh of a one-pound cake was given to a poor kid; rest was distributed among a few girls. If each of the girls got the same amount as the poor kid, the total number of girls was

Validate

Solution:

(3) Remaining part of the cake= 1 -

1/7

6/7

Let the number of girls be n. So,

{{6}/{7}}/{n}={1}/{7} ⇒{6}/{n}=1⇒ n=6

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