Lakshya Education MCQs

Question:  the average of 20 numbers is zero. of them, at the most, how many may be greater than zero ?
Options:

Explanation :

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Question 1.  in the first 10 overs of a cricket game, the run rate was only 3.2. what should be the run rate in the remaining 40 overs to reach the target of 282 runs?
  1.    6.25
  2.    6.5
  3.    6.75
  4.    7
Answer: Option A
Explanation :
Question 2.  the average of 20 numbers is zero. of them, at the most, how many may be greater than zero ?
Answer: Option A
Explanation :
Question 3.  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 ?
  1.    4991
  2.    5467
  3.    5987
  4.    6453
Answer: Option A
Explanation :
Question 4.  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 ?
  1.    4991
  2.    5467
  3.    5987
  4.    6453
Answer: Option A
Explanation :
Question 5.  after replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. what is the difference between the ages of the replaced an
  1.    12
  2.    13
  3.    14
  4.    15
Answer: Option D
Explanation :
Question 6.  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 ration of the number of boys to the number of girls in
  1.    1:2
  2.    2:3
  3.    3:4
  4.     3:5
Answer: Option B
Explanation :

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