Question

Practice Time
Yusuf runs a tea shop. For making a glass of tea he uses 20 mL of milk. Yesterday he made 100 glasses of tea. How much milk did he use?

Answer 1

Quantity of milk used by Yusuf to make a glass of tea = 20 mL
Quantity of milk used by Yusuf to make 100 glasses of tea = 100 × 20 mL
= 2000 mL

Working: $\begin{array}{cccc}& 1& 0& 0\\ & \times & 2& 0\\ & 0& 0& 0\\ 2& 0& 0& \times \\ 2& 0& 0& 0\\ & & & \end{array}$
Thus, Yusuf used 2000 mL of milk to make 100 glasses of tea.