दो संख्याओं का अंतर 10 है और उनका योग 100 है। दोनों संख्याओं के बीच का अनुपात ज्ञात कीजिए।

If all the girls in school B and school C participated in the function, find the ratio between the number of boys in school B and school C who participated in the function.

Which of the following examples represents an inverse proportional relationship (reverse movement)?