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answer plz
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in this soln. XCY means xCy for example 4C1 means 4C1 total cases are (5C4 * 3C1 * 2C1) + (5C3 * 3C2 * 2C1) + (5C3 * 3C1 * 2C2) + (5C2 * 3C3 * 2C1) + (5C2 * 3C2 * 2C2) + (5C1 * 3C3 * 2C2) = 30 + 60 + 30 + 20 + 30 + 5 = 175 SO THE ANSWER SHOULD BE 175 |
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