Average marks of a student in four subjects is 75 . If student obtained 80 marks in 5^{text {th }} s

English

Gujarati

Hindi

4.Average

easy

The average marks of a student in four subjects is $75 .$ If the student obtained $80$ marks in the $5^{\text {th }}$ subject then the new average is?

A

$80$

B

$76$

C

$92$

D

$95$

Solution

Total sum of all the $5$ subjects $=75 \times 4+80=380$

Average $=\frac{380}{5}=76$

Standard 13

Quantitative Aptitude

Share

Similar Questions

The average of $30$ numbers is $15 .$ The average of the first $18$ numbers is $10$ and that of the next $11$ numbers is $20 .$ The last number is

easy

The average of first nine prime numbers is

medium

The average temperature for Monday, Tuesday, Wednesday and Thursday was $48^{\circ}$. The average temperature for Tuesday, Wednesday, Thursday and Friday was $52^{\circ} .$ If the temperature on Monday was $42^{\circ} .$ then the temperature on Friday was (in $degrees$)

medium

Average age of $15$ students of a class is $15\, years.$ Out of these the average age of $5$ students is $14 \,years$ and that of the other $9$ students is $16\, years.$ The age of the $15^{th}$ student is (in $years$)

medium

A batsman has a certain average of runs for $12$ innings. In the $13^{th}$ innings, he scores $96$ runs and thereby increasing his average by $5$ runs. What is his average after the $13^{th}$ innings ?

easy