Question

From 5 Indians and 5 Americans 3 astronauts are to be selected for a trip to Moon. In how many ways the selection can be made?​

Answer 1

Answer:

This is a list of astronauts by year of selection: people selected to train for a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. Until recently, astronauts were sponsored and trained exclusively by governments, either by the military or by civilian space agencies. However, with the advent of suborbital flight starting with privately funded SpaceShipOne in 2004, a new category of astronaut was created: the commercial astronaut.

While the term astronaut is sometimes applied to anyone who trains for travels into space—including scientists, politicians, journalists, and tourists—this article lists only professional astronauts, those who have been selected to train as a profession.

Answer 2

Given :-

From 5 Indians and 5 Americans 3 astronauts are to be selected for a trip to Moon. In how many ways the selection can be made?​

Solution :-

• 5 Indians + 5 Americans = total 10 astronauts
• We need to select three astronauts

→ This can be done is ¹⁰C₃ = 240 ways

∴ Answer is 240 ways

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→ Sathvik :)