Maths Practice Question and Answer
8 Q: A pipe can empty a tank in 40 minutes. A second pipe with diameter twice as much as that of the first is also attached with the tank to empty it . The two pipe together can empty the tank in:
2008 05d987c0d1ece4b483a8c63bc
5d987c0d1ece4b483a8c63bc- 18 minutestrue
- 213 minutesfalse
- 330 minutesfalse
- 438 minutesfalse
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Answer : 1. "8 minutes"
Q: The total surface area of a cube is 864 square cm. What is his volume?
2008 05e32568728cc9f701276e210
5e32568728cc9f701276e210- 1216false
- 21728true
- 3729false
- 4512false
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Answer : 2. "1728"
Q: What are the roots of the equation log10(x2-6x+45) =2?
2007 05daeb0727f47a948b6108660
5daeb0727f47a948b6108660- 19, - 5false
- 2-9, 5false
- 311, -5true
- 4-11, 5false
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Answer : 3. "11, -5"
Q: Average weight of 10 men increases by 3.5 kg when a man of 50 kg is replaced by a new man what is the age of new person? 2007 05d19d3907619fe30b9d34595
5d19d3907619fe30b9d34595- 185 kgtrue
- 284 kgfalse
- 382 kgfalse
- 480 kgfalse
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Answer : 1. "85 kg"
Explanation :
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Q: Ratio between areas of two squares is 36:25. What would be the ratio between their perimeter. 2007 05d1096b587e3540b926c1bc9
5d1096b587e3540b926c1bc9- 15:4false
- 26:5true
- 34:6false
- 48:7false
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Answer : 2. "6:5"
Explanation :
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Q: In how many years a sum of Rs. 3000 will yield an interest of Rs. 1080 at 12% per annum simple interest?
2006 16548d95399dc28caf0402d5e
6548d95399dc28caf0402d5e- 14 yearsfalse
- 23 yearstrue
- 35 yearsfalse
- 46 yearsfalse
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Answer : 2. "3 years"
Explanation :
Q: Profit obtained on selling an article for Rs 540 is equal to the loss incurred on selling the article for Rs 370. if selling price is Rs. 910, Then what is the profit percentage?
2006 05f211ad70fc7110ad91fb995
5f211ad70fc7110ad91fb995- 150false
- 2100true
- 3$$16{2\over 3}$$false
- 4$$33{1\over 3}$$false
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Answer : 2. "100"
Q: The water in a river is flowing at a rate of 4 km/hr. If the width and depth of the river are 8m and 4m respectively, then how much water will enter the sea in 15 minutes?
2006 05f239698e3005114abcaecb8
5f239698e3005114abcaecb8- 1$$28800 \ m^3 $$false
- 2$$32000\ m^3 $$true
- 3$$60000\ m^3 $$false
- 4$$18000\ m^3 $$false
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