Maths Practice Question and Answer
8 Q: If α and β are the roots of equation x2 - 2x + 4 - 0, then what is the equation whose roots are α3/β2 and β3/α2?
1960 05dca46ef88990a4b0e8010a2
5dca46ef88990a4b0e8010a2- 1$$x^2 - 4x + 8 = 0 $$false
- 2$$x^2 - 32x + 4 = 0 $$false
- 3$$x^2 - 2x + 4 = 0 $$true
- 4$$x^2 - 16x + 4 = 0 $$false
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Answer : 3. "$$x^2 - 2x + 4 = 0 $$"
Q: If a + b + c = 0, then a3+b3+c3 is equal to
1956 05dd377b5c2282c484e462792
5dd377b5c2282c484e462792- 1a + b + cfalse
- 2abcfalse
- 32abcfalse
- 43abctrue
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Answer : 4. "3abc"
Q: In an election between two candidates, 75% of the voters cast their votes, out of which 2% votes were declared invalid. A candidate got 9261 votes which were 75% of the valid votes. The total number of voters enrolled in that election was:
1955 05d91f59c4111e61233de3eae
5d91f59c4111e61233de3eae- 116000false
- 216400false
- 316800true
- 418000false
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Answer : 3. "16800"
Q: What approximate value should come in place of the question mark(?) in the following question?
5223÷36×0.93=?
1955 05d4aadc6108bca202e8a5dc2
5d4aadc6108bca202e8a5dc25223÷36×0.93=?
- 1135true
- 2125false
- 3145false
- 4155false
- 5115false
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Answer : 1. "135"
Q: 12 pumps working 6 hours a day can empty a completely filled reservoir in 15 days. How many such pumps working 9 hours a day will empty the same reservoir in 12 days?
1954 15d70e6f7eb96471d6f369878
5d70e6f7eb96471d6f369878- 115false
- 29false
- 310true
- 412false
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Answer : 3. "10"
Q: The average age of 12 players of a team is 25 years. If the captain's age is included, the average age increases by 1 year. The age of the captain is:
1952 05ef5b1d3d7fe8173219d17d4
5ef5b1d3d7fe8173219d17d4- 125 yrs.false
- 236 yrs.false
- 338 yrs.true
- 426 yrs.false
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Answer : 3. "38 yrs. "
Q: Sum of ages of Anita and her mother is 50 years. 5 years before age, Anita’s mother’s age was 7 times of her age, then what will be the ratio of their ages after 5 years? 1952 15d0cb11723ee2e06e9eae28f
5d0cb11723ee2e06e9eae28f- 12:3false
- 21:2false
- 33:1true
- 44:3false
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Answer : 3. "3:1"
Q: A boat goes 75 km upstream in 3 hours and 60 km downstream in 1.5 hours. Then the speed of the boat in still water is:
1949 05f2397e1e3005114abcaf6cb
5f2397e1e3005114abcaf6cb- 165 kmphfalse
- 260 kmphfalse
- 332.5 kmphtrue
- 430 kmphfalse
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