Maths Practice Question and Answer
8 Q: Three numbers are in the ratio of 3:5:10 and their LCM is 630. Find their HCF.
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60701683dac3665e58b1d1ca- 121true
- 242false
- 363false
- 436false
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Answer : 1. "21"
Q: If two numbers are respectively 20% and 50% of a third number, what is the percentage of the first number to the second?
1322 0605860ea4789ef0456dbc1f3
605860ea4789ef0456dbc1f3- 110false
- 220false
- 330false
- 440true
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Answer : 4. "40"
Q: A person invested Rs 3000 on compound interest for two years. If the rate of interest is the 25 % for the first year and 20 % for the second year. Then find the CI?
1322 06080476b11c2747caca71e17
6080476b11c2747caca71e17- 11550false
- 21650false
- 31600false
- 41500true
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Answer : 4. "1500"
Q: The least number, which when divided by 4, 5 and 6 leaves remainder 1, 2 and 3 respectively is:
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5f07f3b08e448621429d86e5- 161false
- 263false
- 357true
- 459false
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Answer : 3. "57"
Q: If tan A=n tan B and Sin A= m Sin B, then the value of Cos2A is
1321 05f4df246081699374e855fcf
5f4df246081699374e855fcf- 1$$ {m^{2}+1\over {n^{2}+1}}$$false
- 2$$ {m^{2}+1\over {n^{2}-1}}$$false
- 3$$ {m^{2}-1\over {n^{2}-1}}$$true
- 4$$ {m^{2}-1\over {n^{2}+1}}$$false
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Answer : 3. "$$ {m^{2}-1\over {n^{2}-1}}$$"
Q:Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.
What is the ratio of companies with high demand to production and companies with less than production?
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5f4f71b87e85226ee74c45d7- 11:2true
- 22:3false
- 32:1false
- 43:2false
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Answer : 1. "1:2"
Q: The heights of a cone, cylinder and hemisphere are equal. If their radii are in the ratio 2:3:1, then the ratio of their volumes is:
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5f59cf9bb772fe2f8b2230a0- 12:9:2false
- 24:9:1false
- 34: 27:2true
- 42 : 3: 1false
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Answer : 3. "4: 27:2"
Q: The speed of a train is 4/7 of the speed of a car. The car covers 252 m. distance in 9 seconds. In what time will the train cover a distance of 64m.?
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5eb011b6021b821d91f460b0- 13 sec.false
- 25 sec.false
- 34 sec.true
- 47 sec.false
- 5None of thesefalse
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