Question

Sheena got 7 and 10 marks in two tests, out of total marks 10. find the marks to be obtained in third test so that she gets 80% marks aggregate in three tests

Answer 1

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Max. Marks on totaling all subject =3*10

=30

Marks to be optained on totaling to get 80%= 80/100*30

=4/5*30

=4*6

=24

If she gets 7&10 in 2 subject, marks need to score more to get 80%=24-7-10

=24-17

=7

.*. She needs 7 more marks to score to score 80%

Answer 2

Step-by-step explanation:

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