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?
2564 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: A heap of coconuts is divided into groups of 2, 3 and 5 and each time one coconut is left over. The least number of Coconuts in the heap is ? 2564 05b5cc6d8e4d2b4197774e778
5b5cc6d8e4d2b4197774e778- 163false
- 231true
- 316false
- 427false
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Answer : 2. "31"
Explanation :
Answer: B) 31 Explanation: To get the least number of coconuts :LCM = 30 => 30 + 1 = 31
Q: Purity of a metal can be determined with the help of
2564 05ebb767e8e4fa473bcbb51d5
5ebb767e8e4fa473bcbb51d5- 1Pascal's lawfalse
- 2Boyle's lawfalse
- 3Archimedes principletrue
- 4Principle of mass conservationfalse
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Answer : 3. "Archimedes principle "
Q: In a class, there are 80 students who study both Computer Science and Electronics. While 100 students study Computer Science, 120 Students study Electronics, How many of them study Computer Science only?
2563 05def5bd52c071834c4fd2b47
5def5bd52c071834c4fd2b47- 1100false
- 240false
- 3120false
- 420true
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Answer : 4. "20"
Q: Who is the author of the book titled 'Muskurate Chand Lamhe aur Kuchh Khamoshiyan?'
2563 063319b312ff7535af66cfefb
63319b312ff7535af66cfefb- 1Pavan C. Lallfalse
- 2Jiwesh Nandantrue
- 3Aradhana Johrifalse
- 4JJ Singhfalse
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Answer : 2. "Jiwesh Nandan "
Q: The ratio of speed of boat in still water to speed of stream is 8 : 1. It takes 4 hours by boat to cover 54 km in downstream & 42 km in upstream. Find the downstream speed of boat.
2563 0603f63a256eac5533a8f5532
603f63a256eac5533a8f5532- 125 kmphfalse
- 224 kmphfalse
- 321 kmphfalse
- 427 kmphtrue
- 523 kmphfalse
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Answer : 4. "27 kmph"
Q: Jaduguda mines are famous for 2563 05b5cc6a8e4d2b4197774ce9a
5b5cc6a8e4d2b4197774ce9a- 1mica depositsfalse
- 2uranium depositstrue
- 3gold depositsfalse
- 4iron orefalse
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Answer : 2. "uranium deposits"
Explanation :
Answer: B) uranium deposits Explanation: The Jaduguda Mine also known as Jadugoda or Jadugora is a Uranium mine in Jaduguda village in the Purbi Singhbhum district of the Indian state of Jharkhand.
Q: The Chief Minister, who had to resign be of his controversial remarks on a poetess-
2563 06307b12120c0656a1da18989
6307b12120c0656a1da18989- 1Mohan Lal Sukhadiafalse
- 2Haridev Joshifalse
- 3Shiv Charan Mathurfalse
- 4Jagannath Pahadiatrue
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