Question

A girl scored 18 out of 25 in English Language and p% in Mathematics. If her average score is 78%, what is the value of p.

Answer 1

Step-by-step explanation:

percentage of score in English=18/25*100

=72%.

72+p/2=78

72+p=156

p=84%

Answer 2

Therefore the value of p is 84.

Step-by-step explanation:

Given a girl scored 18 out of 25 in English Language.

Therefore she got( $\frac{18}{25}\times 100$ ) % =72 % in English.

She scored 78% in mathematics. Her average score is 78%.

According to the problem,

$\frac{72+p}{2} =78$

⇒72 +p = 78×2

⇒72 + p = 156

⇒p=156-72

⇒p = 84

Therefore the value of p is 84.