In how many ways can a team of 3 boys and 3 girls be selected from 5 boys and 4 girls?
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We have Number of girls =4 Number of boys =5 ∴3 girls out of 4 girls can be selected in 4C3 ways and 3 boys out of 5 boys can be selected in 5C3 ways. ∴ Required number of ways 5C3×4C3 =5×4×33×2×1×4×3×23×2×1 =10×4=40
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