Question

20 ice cubes are left to melt in a container. Each ice cube is made of 40 ml of water. After all the ice cubes
have melted in the container, the water is transferred to 80 ml glasses. How many such glasses can be
ith
filled, if
1/5
of the water spills out while pouring?
5​

Answer 1

Answer:

20 ice cubes are left to melt in a container. Each ice cube is made of 40 ml of water. After all the ice cubes

have melted in the container, the water is transferred to 80 ml glasses. How many such glasses can be

ith

filled, if

1/5

of the water spills out while pouring?

5

Answer 2

Given: Number of ice cubes left to melt in the container $= 20$

           Water used in each ice cube $= 40 ml$

           Volume of glasses $= 80 ml$

           Volume of water spilled out while pouring = $\frac{1}{5}$ of water in the container

To find: Number of glasses that can be filled with remaining water

Solution: According to the given question,

Water used in each ice cube $= 40 ml$

So, water used in 20 ice cubes $= 20$ × $40 =$ $800ml$

i.e., water in the container after melting of ice cubes = $800 ml$

Volume of water spilled while pouring = $\frac{1}{5}$ × $800$ $= 160 ml$

So, water left in the container $= 800 - 160 = 640 ml$

Volume of each glass = $80 ml$

Number of glasses that can be filled = $\frac{Volume \ of \ water \ left \ in \ the\ container}{Volume \ of \ each \ glass}$

                                                            = $\frac{640}{80} = 8 \ glasses$

Hence, 8 glasses can be filled.