Question

(a)
Express y marks as a percentage of 80 marks.​

Answer 1

5y/4 %.

Explanation:

That is y/80 as a fraction.

As a percentage this is (y/80) / 100

= 100y / 80

= 5y/4 %.

Answer 2

1.25y

Explanation:

y/80 *100

= 100y/80

= 1.25y