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Permutation and CombinationQuestion and Answers: Page 15
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Question and Answers Forum |
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Permutation and CombinationQuestion and Answers: Page 15 |
| There are 14 boys and 10 girls in a classroom. The teacher wants to form a team of 5 students . The team must have a least two boys and two girls . Find the number of ways the team can be chosen. |
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| Find the number of six−digit odd numbers without repeated digits. |
| There are 10 identical mathematics books, 7 identical physics books and 5 identical chemistry books. Find the number of ways to compile the books under the condition that same books are not mutually adjacent. |
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| A woman sent 8 letters to her friends. The letters are kept in the addressed envelopes at random. The probability that 4 friends receive correct letters and 4 letters go to wrong destination, is ___ |
| Find the number of five−digit numbers containing exactly three different digits? Examples: 12312, 12224 |
| A certain wire has length 4.5 cm and mass 12.3 g, with an electrical resistance of 1.1 mΩ. this wire falls through a horizontal magnetic field with flux density of 0.35 T. As his wire falls its ends slide smoothly between two rails connected by a wire with negligible internal resistance. Calculate the magnitude of the terminal energy resistance, neglecting the resistance of the rails. |
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| NB:P(E) means a set of all part of E |
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| One card is randomly selected from a pack of 52 playing cards. Determine the probability that is a picture card. |
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| a committee consisting of 5 men & 4 women is to be chosen from 8 men & 4 women. If one man & one woman are husband & wife , how many ways can the committee be chosen if only one of the husband & wife must be chosen ? |
| In how many ways can 3 boys and 3 girls be sitted in a line? |
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| (((2n)),(n) ) = 20 find n? |
| (1−2x)^5 (2+x)^6 = a+bx+cx^2 +dx^3 +... find : a,b,c and d |
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| ∫((x^4 dx)/(x^8 +x^4 +1)) |
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