What is $50 %$ of a number whose $200 %$ is $20$ ?

5

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10

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15

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20

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Solution

The correct option is A $5$
Let the number $X$
Given that $200 %$ of $X = 20$
$\Rightarrow \frac{200}{100} \times X = 20$
$\Rightarrow X = 10$
Now $50 %$ of $X = \frac{50}{100} \times 10$
$\Rightarrow 50 %$ of $X = \frac{1}{2} \times 10 = 5$

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Marks	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$	$60 - 70$	$70 - 80$
Number of students	$5$	$10$	$15$	$20$	$25$	$12$	$8$	$5$

$C I$	$0 - 10$	$10 - 15$	$15 - 20$	$20 - 30$	$30 - 40$	$40 - 60$	$60 - 70$
$f$	$20$	$15$	$10$	$25$	$5$	$30$	$50$

Height(cm)	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$
Number of players	$3$	$6$	$2$	$5$	$10$	$4$

\begin{matrix} S i z e o f a g r i c u l t u r a l h o l d i n g s (i n h e c) & N u m b e r o f f a m i l i e s 0 - 5 & 10 5 - 10 & 15 10 - 15 & 30 15 - 20 & 80 20 - 25 & 40 25 - 30 & 20 30 - 35 & 5 \end{matrix}

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