6.
A rectangular tank is 30 m long 20 m broad. Water is being flown into it through a square pipe of side 5 cm. What is the speed of water if the level of water in the tank rises by 1 m in 8 hours?
- A.30 km/hr
- C.40 km/hr
- B.36 km/hr
- D.None of these
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| Volume of water collected in the tank in 8 hours = 30m x 20m x 1m | ||||||||||
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7.
A rectangular tank is 30 m long 20 m broad. Water is being flown into it through a square pipe of side 5 cm. What is the speed of water if the level of water in the tank rises by 1 m in 8 hours?
- A.30 km/hr
- C.40 km/hr
- B.36 km/hr
- D.None of these
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| Volume of water collected in the tank in 8 hours = 30m x 20m x 1m | ||||||||||
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8.
How many small cubes, each of 96 sq cms surface area, can be formed from the material obtained by melting a larger cube of 384 cm2 surface area?
- A.8
- C.800
- B.5
- D.8000
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
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9.
A cube of lead with edges measuring 6 cm each is melted and recasted into 27 equal cubes. The length of the edge of the new cube is
- A.3 cm
- C.2 cm
- B.4 cm
- D.1.5 cm
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
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10.
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- A.3.762 kg
- C.7.462 kg
- B.4.562 kg
- D.6.762 kg
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
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