SSC CGL MATHS QUIZ

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Question 1:

The mean of the marks of three students in an examination of total 45 marks is 38. Two fresh students appeared in the examination. What is the lowest score that can be obtained by one of the new students who has scored less marks than the second new student so that the total average of the marks of five students becomes 40 ?

Question 2:

A batsman has an average run in 16 innings. He scored 80 runs in the 17th innings, increasing his average by 2. His average of runs after 17th innings is

Question 3:

50 boxes of equal weight are loaded into a carry van. 5 other boxes with a weight of 105 kg each were subsequently added, making the average weight of all 55 boxes now 95 kg. Accordingly, what was the weight of each of the 50 boxes that were delivered earlier?

Question 4:

Find the average of the following set of digits 232,149,208,301,399,415

Question 5:

In a class there were 18 boys and some girls. In a test the mean score obtained by the boys was 12 while that obtained by the girls was 14 . If the overall average was $13.1$, what was the total number of students in the class?

Question 6:

The average weight of 14 persons is 76.5 kg. If 3 more persons of weight 82 kg, 75 kg and x kg join them, then the average weight of all the persons increases by 0.5 kg. What is the value of x ?

Question 7:

The average of 15 numbers is 30 , while the average of 13 of these numbers is 32 . If the remaining two numbers are equal, then what is each of the two numbers?

Question 8:

Eight years ago, the average age of a family of 4 persons was 19 years. A baby girl is a new addition to the family and now the average age of the family is 4 years more than it was 8 years ago. How old is baby girl?

Question 9:

The average of 4 numbers is 60 and the first number is $\frac{1}{3}$ of the sum of the remaining three numbers. Find the first number.

Question 10:

The average age of a company A with 5 members is 44.8 years and that of another company B with 4 members is 48 years. The total age of company $B$ is what percent less than the total age of company $A$?