Practice Question and Answer
8 Q: In solving a problem, one student makes a mistake in the coefficient of the first degree term and obtains – 9 and – 1 for the roots. Another student makes a mistake in the constant term of the equation and obtains 8 and 2 for the roots. The correct equation was
3591 05e327c5bd0aa6f23a8fc6e21
5e327c5bd0aa6f23a8fc6e21- 1x2 + 10x + 9 = 0false
- 2x2 – 10x = 16 = 0false
- 3x2 – 10x + 9 = 0true
- 4None of thesefalse
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Answer : 3. "x2 – 10x + 9 = 0"
Q:Directions: Read each sentence to find out whether there is any grammatical error in it. The error if any will be in one part of the sentence, the number of that part will be the answer. If there is no error, mark (5) as the answer. (Ignore errors of punctuation, if any.)
Most people like to (1) / rest after a day's hard work (2)/ but he seemed to have (3)/ an inexhaustive supply of energy. (4) / No error. (5)
3590 05e3d07eec805647d5e36792b
5e3d07eec805647d5e36792b- 11false
- 22false
- 33true
- 44false
- 55false
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Answer : 3. "3"
Q:In each of the following questions, sentences are given with blanks to be filled in with an appropriate word (s). Four alternatives are suggested for each question. Choose the correct alternative out of the four and indicate your choice for the correct answer.
I congratulated him ______ his promotion.
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5e1fe94258cb5b7d3e74c7bd- 1because offalse
- 2tofalse
- 3due tofalse
- 4ontrue
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Answer : 4. "on"
Explanation :
(D) on - The correct phrase is "congratulated him on his promotion." When congratulating someone for an achievement, the preposition "on" is used.
Q: The difference of two numbers is 14. Their LCM and HCF are 441 and 7. Find the two numbers ? 3590 05b5cc709e4d2b4197774f267
5b5cc709e4d2b4197774f267- 163 and 49true
- 264 and 48false
- 362 and 46false
- 464 and 49false
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Answer : 1. "63 and 49"
Explanation :
Answer: A) 63 and 49 Explanation: Since their HCFs are 7, numbers are divisible by 7 and are of the form 7x and 7y Difference = 14 => 7x - 7y = 14=> x - y = 2 product of numbers = product of their hcf and lcm=> 7x * 7y = 441 * 7=> x * y = 63 Now, we havex * y = 63 , x - y = 2=> x = 9 , y = 7 The numbers are 7x and 7y=> 63 and 49
Q: What grows when it eats but dies when it drinks? 3589 05b5cc64de4d2b4197774bcac
5b5cc64de4d2b4197774bcac- Show AnswerHide Answer
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Answer :
Explanation :
A fire grows when it eats but dies when it drinks.
Q: Dhanraj Pillay is related to which sports ? 3588 05b5cc6cde4d2b4197774e195
5b5cc6cde4d2b4197774e195- 1Cricketfalse
- 2Hockeytrue
- 3Golffalse
- 4Footballfalse
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Answer : 2. "Hockey"
Explanation :
Answer: B) Hockey Explanation: Dhanraj Pillay is a retired Indian field hockey player and former captain of the Indian national team.He currently serves as the manager of the team.
Q:Direction: In the question a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expressed the same sentence in Passive/Active Voice and mark your answer in the Answer Sheet.
It is impossible to do this.
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5ddb60f7588f4c52c920fd17- 1To do this is impossible.false
- 2To do this by it is impossible.false
- 3It is impossible to have done this.false
- 4It can't be done.true
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Answer : 4. "It can't be done. "
Q: Amith can row a boat d km upstream and the same distance downstream in 5 hours 15 minutes. Also, he can row the boat 2d km upstream in 7 hours. How long will it take to row the same distance 2d km downstream for Amith ? 3585 05b5cc6c3e4d2b4197774dc63
5b5cc6c3e4d2b4197774dc63- 14 hrs 10 minfalse
- 23 hrs 15 minfalse
- 33 hrs 30 mintrue
- 44 hrs 1 minfalse
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Answer : 3. "3 hrs 30 min"
Explanation :
Answer: C) 3 hrs 30 min Explanation: Let the speed of boat and stream be x and y kmph respectively. According to question d/x+y + d/x-y = 5h 15m or 21/4 hrs ......(i) and 2d/x-y = 7...... (ii) From eq. (i) and (ii) 2d/x+y = 7/2 Hence, Amith will take to row 2d km distance downstream in 7/2 hrs = 3.5 hrs = 3 hrs 30 min.