BIHAR CGL PRE AVERAGE QUIZ - 17

Attempt now to get your rank among 11 students!

Question 1:

The average weight of 15 students in a class increase by $1.5 \mathrm{~kg}$ when one of the students weighting $40 \mathrm{~kg}$ is replaced by a new students. What is the weight (in $\mathrm{kg}$ ) of the new students.

Question 2:

A man purchased 7 bags of rice at the rate of Rs. 700 each, 8 bags of rice at Rs. 900 each and 5 bags of rice at rate of Rs. 1100 each. What is the average cost of one bag of rice?

Question 3:

The average age of Shyam and his two children is 19 years and the average age of Shyam's wife and the same children is 18 years. If the age of Shyam is 35 years the age of his wife is:

Question 4:

A batsman has a certain average in 48 innings. In the next two innings he scored with an average of 70 thereby increasing his overall average by $\frac{4}{5}$ run. What is his average after 50 innings?

Question 5:

There are 49 Students in a mess. If number of students increases by 8 , the expenses of the mess increases by Rs. 105 per day while the average expenditure per head decreases by Rupee 1. What is the original expenditure (in rupees) of the mess?

Question 6:

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

Question 7:

The average marks obtained by a group of 25 students was 24. One student left the group as a result of which the average of the remaining students became 25. But another student joined the group as a result of which the group's average score fell to $\mathbf{2 4 . 8}$ left. What was the average marks of the student who left the group and joined the group?

Question 8:

A student scores $85 \%$ in an examination. The scores were $79,81,88$ and $94$ in $4$ subjects. iif each subject marks is 100. Find the student's score in the 5th subject?

Question 9:

The average age of four players is $18.5$ years. If the age of the coach is also included, the average age increases by $20 \%$. The age of the coach is :

Question 10:

The average of 13 results is 68 . The average of first seven is 63 and that of the last seven is 70 , the seventh result is :