. 6. 1+_ Multiple Choice Questions ...
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. 6. 1+_ Multiple Choice Questions (Mental Ability) Tick (V) the correct answer in each of the following: 1. In a school of 6,422 students, ratio of girls to boys 5:8, 5th of the girls and a th of the boys took part in a school camp. Fraction of the total strength took part in the camp is 7. In the

11th - 12th Class
Maths
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Let ( n_{0} ). ( delta f ) girls ( =5 x quad & n 0.8 f ) boy ( =8 x ) [ begin{array}{l} Rightarrow quad 5 x+8 x=6422 Rightarrow 13 x=6422 Rightarrow quad x=494 end{array} ] Number of sfudents who took part in camp [ begin{array}{l} =frac{1}{5}(5 x)+frac{1}{8}(8 x)=x+x=2 x =988 end{array} ] fraction of total sfreypth who bok parfrincamp [ =frac{988}{6422}=frac{2}{13} ] Offion (a)
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