दो संख्याएँ 4 : 3 के अनुपात में हैं। यदि इन संख्याओं का योग 63 है, तो क्रमशः वे संख्याएँ 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)?