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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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Answer» No. of ways of selecting 3 boys out of 5 boys `= .^(5)C_(3)` No. of ways of selecting 3 girls out of 4 girls `= .^(4)C_(3)` Therefore, number of total teams `= .^(5)C_(3) xx .^(4)C_(3)` `= (5 xx 4 xx 3)/(3 xx 2 xx 1) xx (4 xx 3 xx 2)/(3 xx 2 xx 1)` `= 10 xx 4 xx 40` |
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