Railways Quantitative Aptitude Average Sample Paper

done Average & Problems on Ages Sample Test Paper-7 Total Questions - 20    [Download]

• question_answer1)
  The average age of the family of five members is 24. If the present age of youngest member is 8 yr, then what was the average age of the family at the time of the birth of the youngest member?
  A)
   20 yr
  done clear
  B)
          16 yr
  done clear
  C)
   12 yr               
  done clear
  D)
   18 yr
  done clear
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• question_answer2)
  The sum of five numbers is 924. The average of first two numbers is 201.5 and the average of last two number is 196. What is the third number?
  A)
   133                 
  done clear
  B)
          129
  done clear
  C)
   122                 
  done clear
  D)
          Cannot be determined
  done clear
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• question_answer3)
  The average marks of 65 students in a class was calculated as 150. It was later realised that the marks of one of the students was calculated as 142, whereas his actual marks were 152. What is the actual average marks of the group of 65 students? (Rounded off to two digits after decimal)
  A)
   151.25
  done clear
  B)
   150.15
  done clear
  C)
   151.10
  done clear
  D)
   150.19
  done clear
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• question_answer4)
  The average marks in Science subject of a class of 20 students is 68. If the marks of two students were misread as 48 and 65 of the actual marks 72 and 61 respectively, then what would be the correct average?
  A)
   68.5                
  done clear
  B)
   69
  done clear
  C)
   69.5                
  done clear
  D)
   70
  done clear
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• question_answer5)
  'The average weight of A, B and C is 84 kg. If D joins the group, the average weight of the group becomes 80 kg. If another man E who weighs 3 kg more than D replaces A, then the average of B, C, D and E becomes 79 kg. What is the weight of A?
  A)
   64 kg   
  done clear
  B)
   72 kg
  done clear
  C)
   75 kg   
  done clear
  D)
   80 kg
  done clear
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• question_answer6)
  The average of 11 results is 50. If the average of first 6 results is 49 an that of last 6 is 52, find the 6th result.
  A)
   50                   
  done clear
  B)
   52
  done clear
  C)
   56                   
  done clear
  D)
   60
  done clear
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• question_answer7)
  The average of 30 observations is 45. If three new observations 42, 44 and 48 be added, find the new average.
  A)
   42.9                
  done clear
  B)
   40.1
  done clear
  C)
   42.4                
  done clear
  D)
   44.9
  done clear
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• question_answer8)
  Average of two numbers is 14.5 and square root of their product is 10. What are the numbers?
  A)
   25, 4   
  done clear
  B)
          20, 5
  done clear
  C)
   10, 15 
  done clear
  D)
   Cannot be determined
  done clear
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• question_answer9)
  If average of 25 numbers is 30. If each no. decrease by 10. Then find new average of these no.
  A)
   15                   
  done clear
  B)
   20
  done clear
  C)
   30                   
  done clear
  D)
   40
  done clear
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• question_answer10)
  A person divides his total route of journey into three equal parts and decides to travel the three parts with speeds of 40, 30 and 15 km/hr respectively. Find his average speed during the whole journey.
  A)
   14 km/hr          
  done clear
  B)
   24 km/hr
  done clear
  C)
   34 km/hr          
  done clear
  D)
   44 km/hr
  done clear
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• question_answer11)
  The average age of a lady and her daughter is 28.5. The ratio of their ages is 14 : 5 respectively. What is the daughter?s age?
  A)
   12 years          
  done clear
  B)
          15 years
  done clear
  C)
   18 years          
  done clear
  D)
          Cannot be determined
  done clear
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• question_answer12)
  The age of a man is 4 times that of his son. 5 yrs ago, the man was nine times as old as his son was at that time. What is the present age of the man?
  A)
   28 yrs  
  done clear
  B)
   32 yrs
  done clear
  C)
   40 yrs  
  done clear
  D)
   42 yrs
  done clear
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• question_answer13)
  After 5 yrs, the age of a father will be thrice the age of his son, whereas five years ago, he was 7 times as old as his son was. What are their present ages?
  A)
   30 yrs  
  done clear
  B)
   40 yrs
  done clear
  C)
   50 yrs  
  done clear
  D)
   60 yrs
  done clear
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• question_answer14)
  The ratio of the father's age to the son's age is 4 : 1. The product of their ages is 196. What will be the ratio of their ages after 5 years?
  A)
   7 : 3                
  done clear
  B)
   14 : 9
  done clear
  C)
   11 : 4  
  done clear
  D)
   17 : 3
  done clear
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• question_answer15)
  A man's age is 125% of what it was 10 years ago, but \[83\frac{1}{3}%\] of what it will be after 10 years. What is his present age?
  A)
   30 yrs
  done clear
  B)
          40 yrs
  done clear
  C)
   50 yrs  
  done clear
  D)
   60 yrs
  done clear
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• question_answer16)
  In a family, a couple has a son and daughter. The age of the father is three times that of his daughter and the age of the son is half of his mother. The wife is nine years younger to her husband and the brother is seven years older than his sister. What is the age of the mother?
  A)
   40 years          
  done clear
  B)
   45 years
  done clear
  C)
   50 years          
  done clear
  D)
   60 years
  done clear
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• question_answer17)
  Abhay's age after six years will be three-seventh of his father's age. Ten years ago, the ratio of their ages was 1 : 5. What is Abhay's father's age at present?
  A)
   30 yrs. 
  done clear
  B)
   40 yrs.
  done clear
  C)
   50 yrs. 
  done clear
  D)
   60 yrs.
  done clear
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• question_answer18)
  Tanya's grandfather was 8 times older to her 16 years ago. He would be 3 times of her age 8 years from now. Eight years ago, what was the ratio of Tanya's age to that of her grandfather?
  A)
   1 : 2                
  done clear
  B)
   1 : 5     
  done clear
  C)
   3 : 8                
  done clear
  D)
   11 : 53
  done clear
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• question_answer19)
  The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of fee youngest child?
  A)
   4 years
  done clear
  B)
   8 years
  done clear
  C)
   10 years          
  done clear
  D)
   12 years
  done clear
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• question_answer20)
  Eighteen years ago, a father was three times as old as his son. Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father is:
  A)
   54                   
  done clear
  B)
   72
  done clear
  C)
   105                 
  done clear
  D)
   108
  done clear
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