Question

Reena scored 28 marks out of 40 in Mathematics in July 2019 exam. In september 2019
exam she scored 32 marks out of 40 in Mathematics. Find the percentage increase in the
marks scored by her.
(a) 50%
(b) 10%
(c) 100% (d) 25%​

Answer 1

10%Answer:

Step-by-step

Answer 2

The percentage of increase is 10%

Given:

Reena scored 28 marks out of 40 in Mathematics in July 2019 exam.

In September 2019 exam she scored 32 marks out of 40    

To find:

Find the percentage increase in the marks scored by her.  

Solution:

Given that  

Reena score in July 2019 = 28 marks out of 40  

Reena score in september 2019 = 32 marks out of 40  

The increased marks from July to September = 32 - 28 = 4  

This means for 40 marks Reen got 4 marks extra  

The percentage of increase = (4/40) × 100

= 1/10 × 100  = 10%

Therefore,

The percentage of increase is 10%

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