Question

i have 9 exams with the score for 60 each. how much marks should i lose to have 90 %?

Answer 1

Step-by-step explanation:

you have to lose 54 marks in order to get 90percent

explanation..

9×60=540

90 percent of 54o=486

now 540_486=54

hope it helps

Answer 2

Given,

I have $9$ exams with the score for $60$ each,

So,

$9$ exams with the score for $60 = 9\times 60$

$=540$

Total marks in $9$ exams $= 540$

$90%$% of $540= \frac{90}{100}\times540$

$= 486$

Subtract total score and $486$

Lose marks  $=540-486=54$

Therefore, $54$ marks should i lose to have $90$%.