Dimensions 23321

The main swimming pool has a bottom paved with square tiles with a side of 15 cm. How many tiles lie at the bottom of the pool? (pool dimensions are 50m long and 25m wide. Water depth 1.6m)

Correct answer:

n =  55611

Step-by-step explanation:

$$\begin{gathered} a=50\text{m} \\ b=25\text{cm} \\ c=1.6\text{m} \\ d=15\text{cm}\to \text{m}=15:100\text{m}=0.15\text{m} \\ {n}_1=[a/d]=[50/0.15]=333 \\ {n}_2=[b/d]=[25/0.15]=167 \\ n=n_1\cdot n_2=333\cdot 167=55611 \end{gathered}$$

Try another example