• # question_answer 9) A group of boys went to a restaurant for lunch, where 40% of the boys ordered thali and the remaining six boys ordered snacks. How many boys went to the restaurant? A)  15                               B)  10C)  5                                D)  7

(b) Let number of boys be 'x' then, $40%\Rightarrow \frac{40}{100}\times x=\frac{2}{5}x$ ordered thali remaining boys$=x-\frac{2}{5}x=\frac{3}{5}x$ $\therefore$$\frac{3}{5}x=6$ (boys who ordered snacks) $\therefore$$x=\frac{6\times 5}{3}=10$