GATE Practice Question and Answer
8Q: It takes one minute to fill 2/7 th of a vessel. What is the time taken in minutes to fill the whole of the vessel ? 1997 05b5cc6d8e4d2b4197774e7fd
5b5cc6d8e4d2b4197774e7fd- 11/7 minfalse
- 27/2 mintrue
- 35/7 minfalse
- 47/5 minfalse
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Answer : 2. "7/2 min"
Explanation :
Answer: B) 7/2 min Explanation: Time taken to fill 2/7 = 1Then to fill full 1 = ?? = 1/(2/7) = 7/2 minutes.
Q: what is the gram formula mass of NH43PO4? 1996 05b5cc670e4d2b4197774c039
5b5cc670e4d2b4197774c039- 1139.54false
- 2140.70false
- 3149.08true
- 4153.24false
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Answer : 3. "149.08"
Explanation :
Answer: C) 149.08 Explanation: The gram formula mass is nothing but molar mass. Composition : Symbol Element Atomic weight Atoms P Phosphorus 30.973762 1 = 30.973 O Oxygen 15.9994 4 = 63.998 N Nitrogen 14.0067 3 = 42.020 H Hydrogen 1.00794 12 = 12.096 Total = 30.973+63.998+42.020+12.096 = 149.087
Q: The ratio of investments of two partners A and B is 7:5 and the ratio of their profits is 7:10. If A invested the money for 5 months, find for how much time did B invest the money ? 1996 05b5cc6dfe4d2b4197774eaf3
5b5cc6dfe4d2b4197774eaf3- 111 monthsfalse
- 29 monthsfalse
- 37 monthsfalse
- 410 monthstrue
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Answer : 4. "10 months"
Explanation :
Answer: D) 10 months Explanation: 7x5: 5xk = 7:10k = 10 months
Q: Did mercury cure syphilis? 1996 05b5cc68ee4d2b4197774c411
5b5cc68ee4d2b4197774c411- Show AnswerHide Answer
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Answer :
Explanation :
Mercury was the remedy of choice for syphilis in Protestant Europe. Until the early 20th century, the primary treatment for syphilis was mercury, in the form of calomel, ointments, steam baths, pills, and other concoctions. Mercury was already being used in Western Europe to treat skin diseases.
Q: A certain job was assigned to a group of women to do it in 20 days. But 12 women did not turn up for the job and the remaining did the job in 32 days. The original number of women in the group was? 1995 05b5cc6bae4d2b4197774d794
5b5cc6bae4d2b4197774d794- 136false
- 232true
- 322false
- 428false
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Answer : 2. "32"
Explanation :
Answer: B) 32 Explanation: Let the total women in the group be 'W' Then according to the given data, W x 20 = (W-12) x 32 => W = 32 Therefore, the total number of women in the group = 32
Q: Math Challenge 1994 05b5cc6d5e4d2b4197774e633
5b5cc6d5e4d2b4197774e633- 17false
- 244false
- 34true
- 433false
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Answer : 3. "4"
Explanation :
Answer: C) 4 Explanation: Let the required number be 'N' given that its quarter i.e; N/4 exceeds its double i.e, 2N by 7 => N/4 + 7 = 2N => N + 28 = 8N 7N = 28 N = 4.
Q: Find the next number in the number series? 1, 4, 12, 32, ? 1994 05b5cc6a8e4d2b4197774ce61
5b5cc6a8e4d2b4197774ce61- 180true
- 2100false
- 3192false
- 4169false
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Answer : 1. "80"
Explanation :
Answer: A) 80 Explanation: Next number of the sequence 1, 4, 12, 32,... 1 = 2 x 20 4 = 2 x 21 12 = 3 x 22 32 = 4 x 23 80 = 5 x 24.
Q: An object at rest may have 1993 05b5cc622e4d2b4197774b802
5b5cc622e4d2b4197774b802- 1Momentumfalse
- 2Potential energytrue
- 3Velocityfalse
- 4Kinetic energyfalse
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Answer : 2. "Potential energy"
Explanation :
Answer: B) Potential energy Explanation: An object at rest may have Potential energy.