Question

If there are five subjects and each subject if we get 40 out of 50 what will be the percentage obtained in 50%​

Answer 1

Answer:

40%

Step-by-step explanation:

$marks \: in \: 1 \: subject = 50$

$total \: marks \: in \: 5 \: subjects = 50 \times 5$

$=250$

$marks \: obtained \: in \: 1 \: subject \: = 40$

$marks \: obtained \: in \: 5 \: subjects \: = 40 \times 5$

$= 200$

$now \: \: percentage \: of \: marks = \frac{200}{250} \times 100$

$=\frac{20000}{250}$

$=80\%$

$marks \: obtained \: in \: 50\% = 80\% \times 50\%$

$= \frac{80}{100} \times \frac{50}{100}$

$= \frac{4000}{10000}$

$= 0.4$

$in \: percentage \: = \frac{4}{10} \times 100$

$= \frac{400}{10}$

$= 40\%$