Water flows into a tank which is 200 m long and 150 m wide through a pipe of cross-section 0.3 m × 0.2 m at 20 km/hour. Then the time (in hours) for the water level in the tank to reach 8 m is
A. 50
B. 120
C. 150
D. 200
Answer: Option D
Solution (By Examveda Team)
Let the number of hours be x⇒ (0.3 × 0.2 × 20000) × x = 200 × 150 × 8
⇒ x = $$\frac{{200 \times 150 \times 8}}{{3 \times 2 \times 200}}$$
⇒ x = 200 hrs.
This Question Belongs to Arithmetic Ability >> Mensuration 3D
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