Water flows through a cylindrical pipe of internal diameter $7$ cm at $2$ m per second. If the pipe is always half full then what is the volume of water (in litres) discharged in $10$ minutes ?

4620

litres

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4520

litres

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4000

litres

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4860

litres

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Solution

The correct option is A $4620$ litres
Volume of water flown in $1$ second $= (\frac{22}{7} \times \frac{7}{2} \times \frac{7}{2}) c m^{3}$
$= 7700 ㎤$
Volume of water flown in $10$ minutes $= (7700 \times 10 \times 60) c m^{3}$
$= (\frac{4620 \times 1000}{1000}) ℓ$
$= 4620 ℓ$

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Water flows through a cylindrical pipe of internal diameter 7 cm at 2 m per second. If the pipe is always half full then what is the volume of water (in litres) discharged in 10 minutes ?

The correct option is A 4620 litresVolume of water flown in 1 second=(227×72×72)cm3=7700㎤Volume of water flown in 10 minutes=(7700×10×60)cm3=(4620×10001000)ℓ=4620ℓ

Water flows through a cylindrical pipe of internal diameter $7$ cm at $2$ m per second. If the pipe is always half full then what is the volume of water (in litres) discharged in $10$ minutes ?

The correct option is A $4620$ litres
Volume of water flown in $1$ second $= (\frac{22}{7} \times \frac{7}{2} \times \frac{7}{2}) c m^{3}$
$= 7700 ㎤$
Volume of water flown in $10$ minutes $= (7700 \times 10 \times 60) c m^{3}$
$= (\frac{4620 \times 1000}{1000}) ℓ$
$= 4620 ℓ$