GRE Practice Question and Answer
8Q: A Bus travels first half distance between two places with a speed of 40 kmph and the rest half distance with a speed of 60 kmph. The average speed of the Bus is ? 1680 05b5cc764e4d2b4197774fda3
5b5cc764e4d2b4197774fda3- 148 kmphtrue
- 250 kmphfalse
- 346 kmphfalse
- 442 kmphfalse
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Answer : 1. "48 kmph"
Explanation :
Answer: A) 48 kmph Explanation: we know that speed = distance traveled/time takenlet the total distance traveled by the car is 2x km.then time taken by it to cover first half is x/60 hour.and for second half is x/40 hour.Then average speed= total distance travelled / total time taken. i.e. 2xx60+x40 => 2x5x120 = 48 kmph.
Q: What element is found in all organic compounds? 1676 05b5cc69de4d2b4197774c956
5b5cc69de4d2b4197774c956- 1Hydrogenfalse
- 2Calciumfalse
- 3Nitrogenfalse
- 4Carbontrue
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Answer : 4. "Carbon"
Explanation :
Answer: D) Carbon Explanation: Carbon is found in all organic compounds.
Q: How is my father's mother's only daughter-in-law's daughter's father related to me ? 1676 05b5cc6e3e4d2b4197774ec9d
5b5cc6e3e4d2b4197774ec9d- 1Son-in-lawfalse
- 2Unclefalse
- 3Sonfalse
- 4Fathertrue
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Answer : 4. "Father"
Explanation :
Answer: D) Father Explanation: My fahter's mother's only daughter-in-law is my father's wife i.e. my mother. My mother's daughter is my sister. My sister's father is my father.
Q: The perimeter of a square is equal to twice the perimeter of a rectangle of length 8cm and breadth 7cm. What is the circumference of a semicircle whose diameter is equal to the side of the square ? 1675 05b5cc736e4d2b4197774f841
5b5cc736e4d2b4197774f841- 155.12 cmfalse
- 222.54 cmfalse
- 342.51 cmfalse
- 438.57 cmtrue
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Answer : 4. "38.57 cm"
Explanation :
Answer: D) 38.57 cm Explanation: We know that perimeter of rectangle = 2(l+b) = 2(8+7)= 30cmGiven perimeter of square is twice the perimeter of rectangle = 2(30) = 60cmTherefore, side of the square is = 1/4 x 60 = 15cmCircumference of the required semicircle = πr + 2r = 227× 152 + 2×152 = 23.57 + 15 = 38.57cm.
Q: Calculate the angle between the two hands of clock when the clock shows 4 : 20 p.m. ? 1675 05b5cc76ae4d2b4197774fea9
5b5cc76ae4d2b4197774fea9- 15 degreesfalse
- 210 degreestrue
- 315 degreesfalse
- 425 degreesfalse
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Answer : 2. "10 degrees"
Explanation :
Answer: B) 10 degrees Explanation: Since at 4 : 20 the minute hand will be at 4 and the angle between them will be same as the distance covered in degree by the hour hand in 20 minutes. Required angle = distance of hour hand = speed × time = 12× 20 =10 degrees.
Q: How many spaces are required between punctuation? 1674 05b5cc626e4d2b4197774b87c
5b5cc626e4d2b4197774b87c- 11true
- 22false
- 33false
- 40false
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Answer : 1. "1"
Explanation :
Answer: A) 1 Explanation: While using punctuations, only one space is used.
Q: A man sell 35 waffers for Rs. 15 each and loses Rs. 40.4. If he sells 35 waffers for Rs. 18, how much does he loss or gain ? 1671 15b5cc74ae4d2b4197774fa95
5b5cc74ae4d2b4197774fa95- 1Rs. 64true
- 2Rs. 52false
- 3Rs. 72false
- 4Rs. 55false
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Answer : 1. "Rs. 64"
Explanation :
Answer: A) Rs. 64 Explanation: Given Loss = Rs. 40.4We know loss = cost price - selling price 40.4 = CP - 35(15)=> CP = 40.4 + 525=> CP = Rs. 565.4Now the New selling price of waffer is Rs. 18=> SP = 35(18) = 630Now Gain = SP - CP = 630 -565.4 = Rs. 64.6.
Q: 'K' cycled from A to B at 10 kmph and returned at the rate of 9 kmph. 'L' cycled both ways at 12 kmph. In the whole journey 'L' took 10 minutes less than 'K'. Find the distance between A and B ? 1670 05b5cc74fe4d2b4197774faef
5b5cc74fe4d2b4197774faef- 132.1 kmfalse
- 215.23 kmfalse
- 33.75 kmtrue
- 432.1 mfalse
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Answer : 3. "3.75 km"
Explanation :
Answer: C) 3.75 km Explanation: Let 'd' be the distance between A and BK -time = d/10 + d/9 = 19d/90 hoursL -time = 2d/12 = d/6 hoursWe know that, 10 min = 1/6 hoursThus, time difference between K and L is given as 10 minutes. => 19d/90 - d/6 = 1/6=> (19d-15d)/90 = 1/6=> 4d/90 = 1/6Thus,d= 15/4 km = 3.75 km. hence the distance between A and B is 3.75 km.