Aarush used to solve 4 questions in 10 minutes. After practicing for 10 days he used to solve 6 Questions in 10 minutes. What is the percentage increase?
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Solution

Concept : 1 Mark
Application : 1 Mark
Calculation : 1 Mark

Original numbers of questions solved = 4

New numbers of questions solved = 6

$\Rightarrow$ Increase in the numbers of questions solved = 6 - 4 = 2

$P e r c e n t a g e i n c r e a s e = \frac{I n c r e a s e i n t h e n u m b e r o f q u e s t i o n s}{o r i g i n a l n u m b e r o f q u e s t i o n s} \times 100$

$\Rightarrow P e r c e n t a g e i n c r e a s e = \frac{2}{4} \times 100 = 50$

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Aarush used to solve 4 questions in 10 minutes. After practicing for 10 days he used to solve 6 Questions in 10 minutes. What is the percentage increase? [3 MARKS]

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