The average marks of four subjects is 120. If 33 was misread as 13 during the calculation, what will be the correct average?

A. 122

B. 120

C. 125

D. 121

Show Answer

Answer-C
Solution-

Solution(By Apex Team)


$\begin{array}{l} \text { Correct average }\\ =120+\left(\frac{33-13}{4}\right)\\ =120+5\\ =125 \end{array}$ Solve while reading method: Average given is 120. Difference of 33 and 13 is 20. That means 20 must be added to total. Then average of is and so must be added to average, i.e. Correct average = 120 + 5 = 125

Related Questions On Average


Ajit has a certain average for 9 innings. In the tenth innings, he scores 100 runs thereby increasing his average19 people went to a hotel for combine dinner party 13 by 8 runs. His new average is:

A. 20
B. 21
C. 28
D. 32
Show Answer

Find the average of all the numbers between 6 and 34 which are divisible by 5.

A. 18
B. 20
C. 24
D. 30
Show Answer

In a family, the average age of a father and a mother is 35 years. The average age of the father, mother and their only son is 27 years. What is the age of the son?

A. 10 years
B. 10.5 years
C. 11 years
D. 12 years
Show Answer

If the arithmetic mean of 0, 5, 4, 3 is a, that of -1, 0, 1, 5, 4, 3 is b and that of 5, 4, 3 is c, then the relation between a, b, and c is.

A. a = b = c
B. a : b : c = 3 : 2 : 4
C. 4a = 5b = c
D. a + b + c = 12
Show Answer



More Related Questions On Average