Math, asked by greatsonuroy, 10 months ago

two numbers are respectively 20 percent aand 50 percent of a third number what percentage is the first to the second​

Answers

Answered by Aggarwal17
0

Answer:

First No. = 40% of Second No.

Step-by-step explanation:

Let the third no. be X

Therefore

First No. = 20X/100 = X/5 ...Eq1

Second No. = 50X/100 = X/2 ...Eq2

Dividing Eq2 from Eq1

 \frac{first \: no.}{second \: no.}  =  \frac{x}{5}  \div  \frac{x}{2}

 \frac{first \: no.}{second \: no.}  =  \frac{x}{5}  \times  \frac{2}{x}

 \frac{first \: no.}{second \: no.}  =  \frac{2}{5}

To Calculate the percentage we have to multiply it by 100

 \frac{first \: no.}{second \: no.}  =  \frac{2}{5}  \times 100 = 40\%

Therefore

First No. = 40% of Second No.

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