In an examination, a student's average marks were 66. If he had obtained 10 more marks in Geography and 2 more marks in Maths, his average would have been 68. How many subjects were there in the examination?

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
6

Let the number of subjects = x Then, Total marks he scored for all subjects = 66x
If he had obtained 10 more marks for his Geography and 2 more marks in Maths, his average would have been 68
=> Total marks he would have scored for all subjects = 68x
Now we can form the equation as 68x - 66x = the additional marks of the student = 10 + 2 = 12 => 2x = 12 =>x=12/2=6.

Suggest Corrections

Similar questions

Pie chart showing marks by a student in a examination by student

If total marks are $540$ obtain by student then find.

1 in which subject he scored $105$ marks

2 how many more marks were obtained by student in math than in hindi

Ram appeared in his mid-term examination and his marks in different subjects were:-

$\begin{matrix} Subject & Marks Science & 75 Maths & 85 Hindi & 75 English & 75 Social Science & 65 \end{matrix}$

What is the mode of marks obtained by Ram?

60

2

1

Join BYJU'S Learning Program