Lakshya Education MCQs

Question:  the average weight of 8 men is increased by 2kg when one of the men whose weight is 50 kg is replaced by a new man . the weight of the new man is ?
Options:
A.46 kg
B.56 kg
C.66 kg
D.76 kg
Answer: Option C
Explanation :

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Question 1.  a batsman has a certain average of runs for 14th innings. he scores 72 runs in the 15th innings, thus his average increased by 2. find the average after 15th innings.
  1.    41
  2.    42
  3.    43
  4.    44
Answer: Option D
Explanation :
Question 2.  the average age of 45 students in a class in 13 yr, 15 new students with an average age of 18 yr join the class. what is the average age of all the students in the class?
  1.    14.25 years
  2.    16. 25 years
  3.    18.25 years
  4.    20.25 years
Answer: Option A
Explanation :
Question 3.  out of the three annual examinations, each with a total of 500 marks, a student secured average marks of 45% and 55% in the first and second annual examinations. to have an overall average of 60%, how
  1.    100
  2.    400
  3.    700
  4.    1100
Answer: Option B
Explanation :
Question 4.  the average weight of 8 men is increased by 2kg when one of the men whose weight is 50 kg is replaced by a new man . the weight of the new man is ?
  1.    46 kg
  2.    56 kg
  3.    66 kg
  4.    76 kg
Answer: Option C
Explanation :
Question 5.  the average weight of 19 students is 15kg. by the admission of a new student the average weight is reduced to 14.8 kg. the weight of the new student is ?
  1.    2 kg
  2.    7 kg
  3.    11 kg
  4.    19 kg
Answer: Option C
Explanation :
Question 6.  the average salary per head of all the workers in a workshop is rs. 850, if the average salary per head of 7 technician is rs. 1000 and the average salary per head of the rest is rs 780, the total num
  1.    21
  2.    22
  3.    23
  4.    24
Answer: Option B
Explanation :

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