Aju scored 70 in 1st test and 85 in 2nd test of Mathematics out of 100. What is percentage increase in marks scored by him?
[3 MARKS]

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Solution

Steps: 1 Mark
Application: 1 Mark
Calculation: 1 Mark

Marks scored in the 1st test = 70

Marks scored in the 1st test = 85

Increase in marks = 1st test mark - 2nd test marks

Increase in marks = 85 - 70 = 15

Increase in percentage
$= (\frac{I n c r e a s e}{O r i g i n a l m a r k s}) \times 100$

Increase in percentage
$= (\frac{15}{70}) \times 100$ = 21.42 %

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