Question

I need to know the approximate number of lunches that will be sold

Answer 1

First let's calculate the number of students who will buy lunch 5 times next week and it is given by:-

`\begin{gathered} (35)/(100)*500 \\ =35*5 \\ =175 \end{gathered}`

So 175 students will buy lunch 5 times.

Similarly let's find number of students who will buy lunch 4 times

`\begin{gathered} (15)/(100)*500 \\ =15*5 \\ =75 \end{gathered}`

75 students will buy 4 times

Similarly on calculation we get 50 students will buy 3 times, 50 students will buy 2 times , 90 students will buy 1 time.

So total number of lunches that will be sold will be

`\begin{gathered} 5*175+4*75+3*50+2*50+1*90 \\ =875+300+150+100+90 \\ =1515 \end{gathered}`

So total 1,515 lunches will be sold .Hence the correct option is (A).