GRE प्रश्न और उत्तर का अभ्यास करें

प्र: If selling price is doubled, the profit triples. Find the profit percent ? 2801 0

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    100%
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    200%
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  • 3
    300%
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  • 4
    400%
    सही
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उत्तर : 1. "100%"
व्याख्या :

Answer: A) 100% Explanation: Let the C.P be Rs.100 and S.P be Rs.x, Then The profit is (x-100)Now the S.P is doubled, then the new S.P is 2xNew profit is (2x-100)Now as per the given condition; => 3(x-100) = 2x-100By solving, we get x = 200Then the Profit percent = (200-100)/100 = 100Hence the profit percentage is 100%

प्र: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?  ___ utt ___ tt ___ ttu ___ 2797 0

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    t t u t
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    t u t t
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  • 3
    t u u t
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  • 4
    t t t u
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उत्तर : 3. "t u u t"
व्याख्या :

Answer: C) t u u t Explanation: t, u, u and t. The sequence is : tut tut tut tut.

प्र: A clock is started at 11 a.m. By 600 seconds past 6 p.m, the hour hand has turned through ? 2795 0

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    155 degrees
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    175 degrees
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  • 3
    205 degrees
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  • 4
    215 degrees
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उत्तर : 4. "215 degrees"
व्याख्या :

Answer: D) 215 degrees Explanation: The total angle traced by the hour hand is the angle traced in 7 hours and 10 minutes.We know that the angle traced by the hour hand in one hour is 30º and in one minute is 1/2º.Therefore, (30º x 7) + (10 x 1/2º) = 215º is the angle traced by the hour hand.

प्र: 40% of 265 + 35% of 180 = 50% of ? 2795 0

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    383
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  • 2
    338
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  • 3
    84.5
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  • 4
    253.5
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उत्तर : 2. "338"
व्याख्या :

Answer: B) 338 Explanation: We know that 40% = 25   40% of 265 + 35% of 180 = 50% ?   25 x 265 + 35% of 180 = 50% ?   We know that (35% of 180 = 180% of 35) & 180% = 95   25 x 265 + 95 x 35 = 50% ?   106 + 63 = 50% ?   ?= 2 x 169 = 338.

प्र: If a number 72k23l is divisible by 88. Then find value of k and l ? 2794 0

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    k=8 & l=2
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  • 2
    k=7 & l=2
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  • 3
    k=8 & l=3
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  • 4
    k=7 & l=1
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उत्तर : 2. "k=7 & l=2"
व्याख्या :

Answer: B) k=7 & l=2 Explanation: If a number to be divisile by 88, it should be divisible by both "8" and "11" Check for '8' :For a number to be divisible by "8", the last 3-digit should be divisible by "8"Here 72x23y --> last 3-digit is '23y'So y=2 [ (i.e) 232 is absolutely divisible by "8"] Chech for '11' :For a number to be divisible by "11" , sum of odd digits - sum of even digits should be divisible by "11"(7 + x + 3) - (2 + 2 + y)(7 + x + 3) - (2 + 2 + 2)(10 + x) - 6 should be divisible by "11"for x = 7=> 17 - 6 = 11 [ which is absolutely divisible by "11"] So x = 7 , y= 2.

प्र: Assertive sentences examples list. 2793 0

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उत्तर :
व्याख्या :

An assertive sentence is a sentence that state, assert, or declare something. It means it is a simple statement making thing. As it declares something, is also called as Declarative sentence.       Examples of assertive sentence or statements ::   1. Anamika loves him very much.   2. He picks her daily.   3. Attitude is everything.   4. The sun sets in the west.   5. She likes roses.   6. He is a student.   7. Karthik planned a tour.   8. Peacock is a beautiful bird.   9. India is our country.   10. Joel want to be a doctor.

प्र: What color does blue and yellow make? 2788 0

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    Green
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    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: A man covers a distance of 1200 km in 70 days resting 9 hours a day, if he rests 10 hours a day and walks with speed 1½ times of the previous in how many days will he cover 840 km ? 2784 0

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    39 days
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  • 2
    37 days
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  • 3
    35 days
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  • 4
    33 days
    सही
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उत्तर : 3. "35 days"
व्याख्या :

Answer: C) 35 days Explanation: Distance d = 1200kmlet S be the speed he walks 15 hours a day(i.e 24 - 9)so totally he walks for 70 x 15 = 1050hrs. S = 1200/1050 => 120/105 = 24/21 => 8/7kmph given 1 1/2 of previous speedso 3/2 * 8/7= 24/14 = 12/7 New speed = 12/7kmph Now he rests 10 hrs a day that means he walks 14 hrs a day. time = 840 x 7 /12 => 490 hrs=> 490/14 = 35 days So he will take 35 days to cover 840 km.

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