Question
A group consists of 4 boys and 5
girls. In how many ways can a 5-member committee be formed that includes exactly 3 girls and 2 boys?Solution
ATQ, Number of ways of forming the committee with exactly 3 girls and 2 boys = 5C3 × 4C2 = 10 × 6 = 60
If p = 11, then what is the value of
If x + 1/x = 3, find the value of x³ + 1/x³.
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If [x + (1/x)] = 3, find [x2 + (1/x2)].
What is the average of the first 20 multiples of 12?
Given that x = 80, y = -35 and z = -45, Determine the value of [(x³ + y³ + z³)/10³]
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1/3 + 1/15 + 1/35 + 1/63 + 1/99 = ?
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Simplify:
4x + 6y - [(8x + 5y) - (3x + 2y) + 3y] - 2x