Question

a tank is 20m by 15m by 7m find irs capacity of holding water if 1000c.c = 1 letre​

Answer 1

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Hey Mate!!

Volume = l × b × h

= 20 × 15 × 7

= 2100 $m^{2}$

1 $m^{2}$ = 10000 $cm^{2}$ = 10000 cc

=> 2100 $m^{2}$ = 21000000 $cm^{2}$

=> 21000000 $cm^{2}$ = 21000 litres

Answer 2

Answer:

Volume = Length x Width x Height

Volume = 20 x 7 x 10 = 1400 m³

Find the amount of water taken out:

the water level is reduced by 2m

⇒ The height of the water = 2m

Volume = Length x Width x Height

Volume = 20 x 7 x 2 = 280 m³

Find the volume of water left in the tank:

Volume of water = 400 - 280 = 1120 m³

Answer : 1120 m³ of water is still in the tank