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A student gets 60 marks out of 80 in his first test and 70 marks out of 80 in his second test. Find the percentage increased in the 2nd test.​

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Answer 1

ANSWER:

Given:

• Marks scored in 1st test = 60 out of 80
• Marks scored in 2nd test = 70 out of 80

To Find:

• Percentage increase in marks

Solution:

We are given that,

⇒ Marks scored in 1st test = 60 out of 80

⇒ Marks scored in 2nd test = 70 out of 80

So,

⇒ Change in marks = Marks in 2nd test - Marks in 1st test

⇒ Change in marks = 70/80 - 60/80

⇒ Change in marks = 7/8 - 6/8

⇒ Change in marks = (7 - 6)/8

⇒ Change in marks = 1/8

Percentage increase will be:

⇒ Percentage Change in marks = Change in prices × 100

⇒ Percentage Change in marks =1/8 × 100

⇒ Percentage Change in marks = 100/8

⇒ Percentage Change in marks =12.5%

Therefore, the percentage increase in the marks is 12.5%

Answer 2

ANSWER:

Given:

Marks scored in 1st test = 60 out of 80

Marks scored in 2nd test = 70 out of 80

To Find:

Percentage increase in marks

Solution:

We are given that,

⇒ Marks scored in 1st test = 60 out of 80

⇒ Marks scored in 2nd test = 70 out of 80

So,

⇒ Change in marks = Marks in 2nd test - Marks in 1st test

⇒ Change in marks = 70/80 - 60/80

⇒ Change in marks = 7/8 - 6/8

⇒ Change in marks = (7 - 6)/8

⇒ Change in marks = 1/8

Percentage increase will be:

⇒ Percentage Change in marks = Change in prices × 100

⇒ Percentage Change in marks =1/8 × 100

⇒ Percentage Change in marks = 100/8

⇒ Percentage Change in marks =12.5%

Therefore, the percentage increase in the marks is 12.5%