Question

50% of a=b,हो तो 40 का b%,a का कितना % होगा?​

Answer 1

Step-by-step explanation:

$50 \% \: of \: a \: = b \\ \frac{50}{100} \times a = b \\ \frac{1}{2} a = b \\ \frac{a}{2} = b ....(1)\\ 40 \% \: of \: b \: = \frac{40}{100} \times b \\ = \frac{40}{100} \times \frac{a}{2} \: \\ = \frac{20}{100} \times a \\ = 20 \% \: of \: a \\ thus \: 40 \% \: of \: b \: = 20 \% \: of \: a$