Question 65
The average marks of Ravi in five subjects are 150, but in mathematics 43 was misread as 23 during the calculation. The correct average is:
Solution
Given,
The average marks of Ravi in five subjects = 150
Sum of the marks of Ravi in five subjects = $$150\times5=750$$
In Mathematics, 43 is misread as 23 during the calculation
$$=$$> Correct sum of the marks of Ravi in five subjects = 750-23+43 = 770
$$\therefore\ $$Correct average of the marks of Ravi in five subjects = $$\frac{770}{5}=154$$
Hence, the correct answer is Option C
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