Question

5. Find the percentage of increase if marks in a test increased from 20 to 30.
(a). 50%
(b). 25%
(c). 100%
(d). 75%​

Answer 1

Answer:

(a). 50%

Step-by-step explanation:

increase = 30 -20 = 10

increase % = increase / initial value*100

increase% = 10/20*100 = 50%