Question

A shopkeeper sells mangoes in two types of boxes, one small and one large. A large box contains as many as 8 small boxes plus 4 loose mangoes. Set up an equation which gives the number of mangoes in each small box. The number of mangoes in a large box is given to be 100.

Answer 1

Let a small box contain m mangoes.
A large box contains 4 more than 8 times m, that is, 8m + 4 mangoes.

But this is given to be 100.
Thus 8m + 4 =100.

You can get the number of mangoes in a small box by solving this equation.