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Q.

Ritu painted $\frac{2}{5}$ of the wall space in her room. Her sister Rashmi helped and painted $\frac{3}{5}$ of the wall space. How much did they paint together?

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a

\frac{5}{10}

b

\frac{6}{25}

c

\frac{1}{5}

d

1

answer is D.

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Detailed Solution

Given that,
Fraction painted by Ritu =

\frac{2}{5}

,
Fraction painted by Rashmi =

\frac{3}{5}

.
So, total fraction of wall painted by Ritu and Rashmi =

\frac{2}{5} + \frac{3}{5}

\Rightarrow

\frac{5}{5}

\Rightarrow

1
Therefore, option (4) is correct.

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Ritu painted 25 of the wall space in her room. Her sister Rashmi helped and painted 35 of the wall space. How much did they paint together?