GATE Practice Question and Answer
8Q: Rajan's present age is three times his daughter's and nine-thirteenth of his mother's present age. The sum of the present ages of all three of them is 125 years. What is the difference between the present ages of Rajan's daughter and Rajan's mather ? 2171 05b5cc72ce4d2b4197774f773
5b5cc72ce4d2b4197774f773- 132 yearsfalse
- 248 yearsfalse
- 362 yearsfalse
- 450 yearstrue
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Answer : 4. "50 years"
Explanation :
Answer: D) 50 years Explanation: Let Rajan's present age be 'x' years.=> Then his daughter's present age is = x/3 years.His mother's present age = 13x/9 yearsNow, according to the question,x + x/3 + 13x/9 = 125=> x = 125x9/25 = 45Therefore, required difference = 13x/9 - x/3 = 13x - 3x/9 = 10x/9=> 10 x 45/9 = 50 years.
Q: Statements :- All kids are God. No God is a Human. Some Human are Son. All Son are Men. Conclusions :- (a) Some Son are not God. (b) Some Men are Human. 2165 05b5cc6c8e4d2b4197774defb
5b5cc6c8e4d2b4197774defb- 1Only A followsfalse
- 2Only B followsfalse
- 3Both (A) and (B) followstrue
- 4A) and (B) follows D)false
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Answer : 3. "Both (A) and (B) follows"
Explanation :
Answer: C) Both (A) and (B) follows Explanation:
Q: Directions: Four friends Raghu, Rajesh, Ramesh and Ravi complete their Graduation in different number of years. The one who took maximum time took eight years to complete his Graduation while the one who took least time took only three years to complete it.Ravi took more time only than Raghu and completed his Graduation in five years. Ramesh did not take longer timethan Rajesh to complete his Graduation. Question: Who took more years to complete his graduation among all ? 2163 05b5cc76de4d2b4197774feae
5b5cc76de4d2b4197774feae- 1Rameshfalse
- 2Raghufalse
- 3Rajeshtrue
- 4Ravifalse
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Answer : 3. "Rajesh"
Explanation :
Answer: C) Rajesh Explanation: Rajesh - 8 years Ramesh - 6 or 7 years Ravi - 5 years Raghu - 3 years
Q: At what time between 3 and 4 o’clock will the minute hand and the hour hand are on the same straight line but facing opposite directions ? 2161 05b5cc75ee4d2b4197774fcee
5b5cc75ee4d2b4197774fcee- 13:15 2/8false
- 23:49false
- 33:49 1/11true
- 43:51false
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Answer : 3. "3:49 1/11"
Explanation :
Answer: C) 3:49 1/11 Explanation: On straight line means 180 degree angle.180 = 11/2 min – 30 hrs180 = 11/2 m – 30 × 3180 = 11/2 m – 90(180 + 90) 2 = 11 mm = 540/11 = 49 1/11 minutes.
Q: Expansion cards are inserted into 2160 05b5cc6b9e4d2b4197774d6bc
5b5cc6b9e4d2b4197774d6bc- 1Peripheral Devicesfalse
- 2Pegsfalse
- 3Slotstrue
- 4The back of the computerfalse
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Answer : 3. "Slots"
Explanation :
Answer: C) Slots Explanation: In computing, the expansion card or board or accessory card is a printed circuit board that can be inserted into an electrical connector or expansion slot, on a computer motherboard, to add functionality to a computer system via the expansion bus.
Q: A mixture of 70 litres of Fruit Juice and water contains 10% water. How many litres of water should be added to the mixture so that the mixture contains 12.5% water ? 2159 05b5cc6dfe4d2b4197774eb1b
5b5cc6dfe4d2b4197774eb1b- 12 littrue
- 24 litfalse
- 31 litfalse
- 43 litfalse
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Answer : 1. "2 lit"
Explanation :
Answer: A) 2 lit Explanation: Quantity of fruit juice in the mixture = 70 - [70 x (10/100) ]= 63 litres. After adding water, juice would form 87.5% of the mixture. Hence, if quantity of mixture after adding x liters of water, [(87.5) /100 ]*x = 63 => x = 72 Hence 72 - 70 = 2 litres of water must be added.
Q: Which number replaces the '?' in the given series 108, 127, 2413, 2430, 41310, ?, 619875 2156 05b5cc767e4d2b4197774fdf2
5b5cc767e4d2b4197774fdf2- 141975false
- 241325true
- 384375false
- 441365false
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Answer : 2. "41325"
Explanation :
Answer: B) 41325 Explanation: The given series follows a pattern of +19, x19, +17, x17, +15, x15,... Here the number which is to be replaced in ? is 41310+15=41325.
Q: Oxygen in our blood is transported by a protein named 2151 05b5cc696e4d2b4197774c551
5b5cc696e4d2b4197774c551- 1keratinfalse
- 2myoglobifalse
- 3collagenfalse
- 4haemoglobintrue
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Answer : 4. "haemoglobin"
Explanation :
Answer: D) haemoglobin Explanation: Oxygen in our blood is transported by a protein named Haemoglobin.