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A cistern 6 m long and 4 m wide, contain...

A cistern 6 m long and 4 m wide, contains water up to a depth of 1m 25 cm. The total area of the wet surface is

A

55 मी`""^2`

B

53.5 मी`""^2`

C

50 मी`""^2`

D

49 मी `""^2`

Text Solution

Verified by Experts

The correct Answer is:
D
हौज का वह भाग जो पानी से भरा होगा
= 2(ल. + चौ.)`xx` ऊँचाई + (ल. `xx` चौ.)
` = 2 ( 6+4 ) xx 1 (25)/(100) + ( 6 xx 4)`
`= 20 xx (5)/(5)/(4) + 24`
`=25 + 24`
= 49 मी`""^2`
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