Question

On sunday ,a restaurant had 100 guest. 13/20 of the guests were male.how many where female?

Answer 1

If 13 out of 20 are male then multiply 20 by 5 which equals to 100 and multiply 13 by 5 which equals to 65. so there are 65 males. for females minus 65 from 100 which equals to 35. So, there are 35 females in the restaurant.  

Answer 2

Hi friend!

$<marquee direction="right" behavior="alternate"><big><big><b>Answer:</b></big></big></marquee>$

No. of males =
$\frac{13}{20} \times 100$
No. of females =
$(1 - \frac{13}{20} ) \times 100 \\ \\ = \frac{20 - 13}{20} \times 100 \\ \\ = \frac{7}{20} \times 100 \\ \\ = \frac{700}{20} = \frac{70}{2} \\ \\ = 35 \: women$

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