Question

please solve fast it's urgent​

Answer 1

Answer:

your answer is in the picture.

Hope it helps you....

Answer 2

Formula

( Increase in marks * 100 ) / Old marks

Given

Old marks = 75

New marks = 90

So, increase in marks = 90 - 75 = 15

Solving

( Increase in marks * 100 ) / Old marks

( 15 * 100 ) / 75

1500 / 75

20

Answer

So, his percentage increased by 20%.

Thank you.