Lakshya Education MCQs

  1. Topics
  2. Aptitude
  3. Average
Question: A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6500?
Options:
A.Rs. 4991
B.Rs. 5991
C.Rs. 6001
D.Rs. 6991
Answer: Option A

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Question 1. In a one-day cricket match the captain of one of the teams scored 30 runs more than the average runs scored by the remaining six batsman of that team who batted in the match. If the total runs scored by all the batsmen of that team were 310, how many runs did the captain score?
  1.    50
  2.    60
  3.    70
  4.    Cannot be determined
  5.    None of these
Answer: Option C
Question 2. The average price of 10 books is Rs. 12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books?
  1.    Rs. 5, Rs. 7.50
  2.    Rs. 8, Rs. 12
  3.    Rs. 10, Rs. 16
  4.    Rs. 12, Rs. 14
Answer: Option C
Question 3. 16 children are to be divided into two groups A and B of 10 and 6 children. The average percent marks obtained by the children of group A is 75 and the average percent marks of all the 16 children is 76. What is the average percent marks of children of group B ?
  1.    $$77\frac{1}{3}$$
  2.    $$77\frac{2}{3}$$
  3.    $$78\frac{1}{3}$$
  4.    $$78\frac{2}{3}$$
Answer: Option B
Question 4. In an examination, a pupil’s average mark was 63 per paper. If he had obtained 20 more marks for his Geography paper and 2 more marks for his History paper, his average per paper would have been 65. How many papers were there in the examination?
  1.    8
  2.    9
  3.    10
  4.    11
Answer: Option D
Question 5. The average of 8 numbers is 20. The average of first two numbers is $$15\frac{1}{2}$$ and that of the next three is $$21\frac{1}{3}$$. If the sixth number be less than the seventh and eighth numbers by 4 and 7 respectively, then the eight number is-
  1.    18
  2.    22
  3.    25
  4.    27
Answer: Option C
Question 6. While calculating the average of a batsman as 36 in 100 matches that he played, one of the scores 90 was incorrectly noted as 40. The percentage error is-
  1.    0.5%
  2.    1.21%
  3.    1.34%
  4.    1.36%
Answer: Option D

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