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A hemispherical tank of diameter 3M …

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A hemispherical tank of diameter 3M is full of water it is being emptied by a pipe at the rate of 3 whole 4.7 litre per second how much time will it take to make tank half emptied

Posted by Pratham Vardaan 7 years, 3 months ago

CBSE > Class 10 > Mathematics

4 answers

Ram Kushwah 7 years, 3 months ago

Let tank empties in t sec

Volume of tank

=2/3πr³×1000 litre (1m³=1000 litres)

V=2/3×22/7×27/8×1000 litre,........(1)

Also V=speed×time=25/7×t...........(2)

From (1)and (2) we will get

t=1980 sec=33 minutes

0Thank You

Harish Gupta 7 years, 3 months ago

Here 3 whole means the quotient . When 25 is divided by 7 the remainder is 4 and quotient is 3

2Thank You

Harish Gupta 7 years, 3 months ago

16.5minutes

0Thank You

Prashant Mitraov 7 years, 3 months ago

3whole ka kya matlab

1Thank You

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Posted by Kanika . 4 months, 3 weeks ago

CBSE > Class 10 > Mathematics