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07 Dec 2021, 07:45
Kudos
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C
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Difficulty:
55%
(hard)
Question Stats:
63% (02:03) correct
37%
(01:48)
wrong
based on 102
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Rain of two centimeters as measured by an instrument fell on a square piece of land measuring one kilometer by one kilometer. Half of the fallen rain water was collected and transferred to a pool whose base measured 100m x 10m. By what amount did the water level rise in the pool?
(A) 1m
(B) 5m
(C) 10m
(D) 15m
(E) 20m
Are You Up For the Challenge: 700 Level Questions
(A) 1m
(B) 5m
(C) 10m
(D) 15m
(E) 20m
Are You Up For the Challenge: 700 Level Questions
07 Dec 2021, 07:53
Kudos
Bookmarks
Total rain collected is
1000 * 1000 * 2/100* 1/2
= 100 * 100
Base of pool
100*10
So it will make the water rise by 10 m
Posted from my mobile device
1000 * 1000 * 2/100* 1/2
= 100 * 100
Base of pool
100*10
So it will make the water rise by 10 m
Posted from my mobile device
07 Dec 2021, 18:43
Kudos
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Bunuel
Volume of water collected in the field = 1000*1000*2/100 metre^3 = 20000m^3
Half of this is collected = 10000 m^3
Now equating it with the pool volume
10000 = 10*100*H
H = 10metres. C
