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Quantitative Aptitude

AVERAGES MCQs

Averages

Total Questions : 3752 | Page 98 of 376 pages
Question 971.  the average of five numbers is 27. if one number is excluded, the average becomes 25. the excluded number is :
  1.    25
  2.    35
  3.    45
  4.    55
 Discuss Question
Answer: Option B. -> 35
Explanation :
Question 972.  in a class of 78 students 41 are taking french, 22 are taking german. of the students taking french or german, 9 are taking both courses. how many students are not enrolled in either course?
  1.    6
  2.    12
  3.    24
  4.    18
 Discuss Question
Answer: Option C. -> 24
Explanation :
Question 973.  the average age of students of a class is 15.8 years. the average age of boys in the class is 16.4 years and that of the girls is 15.4 years, the ratio of the number of boys to the number of girls in
  1.    1 : 2
  2.    2 : 3
  3.    3 : 4
  4.    4 : 5
 Discuss Question
Answer: Option B. -> 2 : 3
Explanation :
Question 974.  the average of five numbers is 27. if one number is excluded, the average becomes 25. the excluded number is :
  1.    25
  2.    35
  3.    45
  4.    55
 Discuss Question
Answer: Option B. -> 35
Explanation :
Question 975.  what is the average of four tenths and five thousandths
  1.    25002
  2.    2502
  3.    0.2025
  4.    none
 Discuss Question
Answer: Option C. -> 0.2025
Explanation :
Question 976.  the average age of the boys in a class is 16 years and that of the girls is 15 years. the average age for the whole class is :
  1.    15
  2.    20
  3.    21
  4.    data inadequate
 Discuss Question
Answer: Option D. -> data inadequate
Explanation :
Question 977.  the average value of property of mittal, ambani and singhania is rs.11111 crore. the property of singhania is as less than the property of mittal is greater than the average property of both the singh
  1.    Rs.111 crore
  2.    Rs. 1111 crore
  3.    Rs. 11111 crore
  4.    can't be determined
 Discuss Question
Answer: Option C. -> Rs. 11111 crore
Explanation :
Question 978.  a family consists of grandparents, parents and three grandchildren. the average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. what is t
  1.    31( 5/7)
  2.    32 (6/7)
  3.    34(4/7)
  4.    35(4/9)
 Discuss Question
Answer: Option A. -> 31( 5/7)
Explanation :
Question 979.  a family consists of grandparents, parents and three grandchildren. the average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. what is t
  1.    31( 5/7)
  2.    32 (6/7)
  3.    34(4/7)
  4.    35(4/9)
 Discuss Question
Answer: Option A. -> 31( 5/7)
Explanation :
Question 980.  the average age of a group of persons going for picnic is 16 years. twenty new persons with an average age of 15 years join the group on the spot due to which their average age becomes 15.5 years. the
  1.    15
  2.    20
  3.    23
  4.    24
 Discuss Question
Answer: Option B. -> 20
Explanation :

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