7
4B. एउटा कक्षामा 80 जना विद्यार्थीहरू छन् । तिनीहरूमध्ये 25 जना केटीहरू र बाँकी केटाहरू छन् । 10 जना बिदेशी र बाँकी
नेपालीहरू छन् । यदि 20 जना गोरा रङ्गका छन् भने एक जना विद्यार्थी छान्दा बिदेशी गोरी केटी छानिने सम्भाव्यता कति होला ।
There are 80 students in a class. Among them 25 are girls and remaining are boys, 10 foreigners and
remaining Nepalese. If 20 of them are fair-complexioned, what is the probability of selecting a fair-
complexioned foreign girl?