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प्र: There are two numbers such that the sum of twice the first number and thrice the second number is 100 and sum of thrice the first number and twice the second number is 120. Which is the larger number ? 1220 0

  • 1
    32
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  • 2
    24
    सही
    गलत
  • 3
    26
    सही
    गलत
  • 4
    38
    सही
    गलत
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उत्तर : 1. "32"
व्याख्या :

Answer: A) 32 Explanation: Let the first number be K and second number be LThen, 2K + 3L = 100.....(1)3K + 2L = 120.......(2)solving (1)&(2), we getK = 32 and L = 12 Hence the largest number is 32.

प्र: When all the students in a school are made to stand in rows of 54, 30 such rows are formed. If the students are made to stand in rows of 45, how many such rows will be formed ? 1269 0

  • 1
    22
    सही
    गलत
  • 2
    36
    सही
    गलत
  • 3
    32
    सही
    गलत
  • 4
    26
    सही
    गलत
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उत्तर : 2. "36"
व्याख्या :

Answer: B) 36 Explanation: Total number of students = 54 x 30When arranged in rows of 45, number of rows formed are, 54x3045 = 36.

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उत्तर : 3. "J"
व्याख्या :

Answer: C) J Explanation: Given word is TIRADESNow the consonants T, R, D, S are replaced by S, Q, C, RAnd Vowels are I, A, E are replaced by J, B and FThey are arranged alphabeticallyNew word is BCFJQRS The fourth letter from the right end is J.

प्र: How many number of weights do you need to weight 31 kg of Rice if you have one kg of weight stone ? 2566 0

  • 1
    3
    सही
    गलत
  • 2
    5
    सही
    गलत
  • 3
    7
    सही
    गलत
  • 4
    9
    सही
    गलत
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उत्तर : 2. "5"
व्याख्या :

Answer: B) 5 Explanation: There are total 5 ways.we have only one kg of weight so,2kg = 1kg + 1kg4kg = 1 + 2 + 18kg = 1 + 2 + 4 + 116kg = 1 + 2 + 4 + 8 + 131kg = 1 + 2 + 4 + 8 + 16So 5 weights are needed.

प्र: The average age of 80 boys in a class is 15. The average age of group of 15 boys in the class is 16 and the average of another 25 boys in the class is 14. What is the average age of the remaining boys in the class ? 1419 0

  • 1
    12.24 yrs
    सही
    गलत
  • 2
    13.25 yrs
    सही
    गलत
  • 3
    16 yrs
    सही
    गलत
  • 4
    15.25 yrs
    सही
    गलत
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उत्तर : 4. "15.25 yrs"
व्याख्या :

Answer: D) 15.25 yrs Explanation: Total ages of 80 boys = 15 x 80 = 1200 yrs.Total age of 16 boys = 15 x 16 = 240 yrsTotal age of 25 boys = 14 x 25 = 350 yrs.Average age of remaining boys = 1200 - (240+350) / 80 - (25+15) = 610/41 = 15.25 yrs.

प्र: An employee may claim Rs. 7.00 for each km when he travels by taxi and Rs. 6.00 for each km if he drives his own car. If in one week he claimed Rs. 595 for traveling 90 km. How many kms did he travel by taxi ? 2420 0

  • 1
    55 kms
    सही
    गलत
  • 2
    35 kms
    सही
    गलत
  • 3
    25 kms
    सही
    गलत
  • 4
    65 kms
    सही
    गलत
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उत्तर : 1. "55 kms"
व्याख्या :

Answer: A) 55 kms Explanation: Let x and y be the respective km's travelled by man via taxi and by his own car.Given x + y = 90 => x = 90 - yBut according to the question,7x + 6y = 5957(90-y) + 6y = 595=> 630 - 7y + 6y = 595=> y = 630 - 595 = 35=> x = 90 - 35 = 55Therefore, the distance travelled by taxi is 55 kms.

प्र: The ratio of present ages of Hema and Chinnu is 13:17. Four years ago the ratio of their ages was 11:15. What will be the ratio of their ages six years hence ? 1511 0

  • 1
    3 : 7
    सही
    गलत
  • 2
    7 : 9
    सही
    गलत
  • 3
    4 : 5
    सही
    गलत
  • 4
    1 : 3
    सही
    गलत
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उत्तर : 3. "4 : 5"
व्याख्या :

Answer: C) 4 : 5 Explanation: Let their present ages be 13x and 17x.Then, 13x-4/17x-4 = 11/15. Solving this, we get x = 2.Required ratio = 13x2 + 6/17x2 + 6 = 32/40 = 4/5.

प्र: Statement: There has been a significant drop in the water level of all the lakes supplying water to the city.Courses of action:I. The water supply authority should impose a partial cut in supply to tackle the situation.II. The government should appeal to all the residents though mass media for minimal use of water. 2626 0

  • 1
    Only I follows
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  • 2
    Only II follows
    सही
    गलत
  • 3
    Both I & II follows
    सही
    गलत
  • 4
    Neither I nor II follows
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    गलत
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उत्तर : 3. "Both I & II follows"
व्याख्या :

Answer: C) Both I & II follows Explanation: The situation can be tackled by periodic cuts in supply, and urging people to conserve water. So both the courses follow.

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