GRE प्रश्न और उत्तर का अभ्यास करें

प्र: A,B,C together can do a piece of work in 10 days.All the three started workingat it together and after 4 days,A left.Then,B and C together completed the work in 10 more days.In how many days can complete a work alone ? 1890 0

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    25
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    24
    सही
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  • 3
    23
    सही
    गलत
  • 4
    21
    सही
    गलत
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उत्तर : 1. "25"
व्याख्या :

Answer: A) 25 Explanation: (A+B+C) do 1 work in 10 days. So (A+B+C)'s 1 day work=1/10 and as they work together for 4 days so workdone by them in 4 days=4/10=2/5 Remaining work=1-2/5=3/5   (B+C) take 10 more days to complete 3/5 work. So( B+C)'s 1 day work=3/50 Now A'S 1 day work=(A+B+C)'s 1 day work - (B+C)'s 1 day work=1/10-3/50=1/25 A does 1/25 work in in 1 day Therefore 1 work in 25 days.

प्र: What color does blue and yellow make? 1887 0

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    Green
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  • 2
    Black
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    Red
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  • 4
    White
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उत्तर : 1. "Green"
व्याख्या :

Answer: A) Green Explanation: Mixing of blue and yellow colors make Green Color.                                     RYB (an abbreviation of red–yellow–blue) is a historical set of colors used in subtractive color mixing and is one commonly used set of primary colors. It is primarily used in art and design education, particularly painting. RYB predates modern scientific color theory, which has determined that cyan, magenta, and yellow are the best set of three colorants to combine, for the widest range of high-chroma colors.

प्र: CK169JROS2419TXKM??PV 1886 0

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    14,21
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  • 2
    21,14
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  • 3
    56,84
    सही
    गलत
  • 4
    84,56
    सही
    गलत
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उत्तर : 2. "21,14"
व्याख्या :

Answer: B) 21,14 Explanation: Putting A=1, B=2, C=3,..., M=13,....,X=24,Y=25, Z=26, we have :        JR = J + R2 + 2 = 10 + 18 2 + 2 = 16       CK = C + K2 + 2 =  3 + 112 + 2 = 9       TX = T + X2+ 2 = 20 + 242 + 2 = 24       OS = O + S2 + 2 = 15 + 192 + 2 = 19        So, the missing numbers are :       21 and 14       Hence, the answer is (b).

प्र: Opposite word of Enormous? 1882 0

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    tiny
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    large in size
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    high quantity
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  • 4
    to the most extent
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उत्तर : 1. "tiny"
व्याख्या :

Answer: A) tiny Explanation: Enormous means very large in quantity or size or extent. Antonym or opposite of enormous is little, small or tiny.

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उत्तर : 2. "2"
व्याख्या :

Answer: B) 2 Explanation: Given number is 14278359As given 1st and 5th digits, 2nd & 6th, 3rd & 7th and 4th & 8th digits are to to be interchanged.Therfore, the rearranged number is 83591427Then, the second digit from the right end is 2.

प्र: Which one of the following launched world's longest scheduled flight ? 1881 0

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    Qatar Airways
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  • 2
    British Airways
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    Jet Blue
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  • 4
    Air India
    सही
    गलत
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उत्तर : 1. "Qatar Airways"
व्याख्या :

Answer: A) Qatar Airways Explanation: The Qatar Airways has launched the World’s longest scheduled commercial service to ply between Doha to Auckland. The inaugural service of Flight QR920 took off on February 5, 2017 from Doha and will take 16 hours and 20 minutes to travel 14,535 kilometers to reach Auckland in New Zealand.This makes Qatar Airways to launch the World’s fastest and longest passenger service in terms of flying time. Prior to this, emirates launched the world’s longest non-stop scheduled commercial flight with a service from Dubai to Auckland, spanning 14,200 kilometres.

प्र: Rajitha's present age is three years less than twice her age 12 years ago. Also, the ratio of Raj's present age to Rajitha's present age is 4:9. What will be Raj's age after 5 years ? 1876 0

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    17 yrs
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  • 2
    16 yrs
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  • 3
    19 yrs
    सही
    गलत
  • 4
    21 yrs
    सही
    गलत
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उत्तर : 1. "17 yrs"
व्याख्या :

Answer: A) 17 yrs Explanation: Let the present age of Raj and Rajitha be 4x and 9x.Then, according to question,9x = 2(9x-12)-3 => 9x = 27 => x = 3Raj's present age = 4x = 12yrs, After 5 years Raj's age will be 12 + 5 = 17 yrs.

प्र: Reptile is to Lizard as Flower is to 1864 0

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    Orchids
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    Stem
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    Leaf
    सही
    गलत
  • 4
    Petal
    सही
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उत्तर : 1. "Orchids"
व्याख्या :

Answer: A) Orchids Explanation: Here Lizard is a type of Reptiles whereas Orchid is a type of flowers. Other than Orchids all are parts of Plants.   Hence, Reptile is to Lizard as Flower is to Orchids.

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