How many numbers greater than 40000 can be formed by using digit

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 Multiple Choice QuestionsShort Answer Type

151. If the different permutations of the word ‘EXAMINATION’ are listed as in dictionary. How many words are formed before the first letter starting with E?
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152. In how many ways can 4 boys and 4 girls be seated around a circular table so that no two girls are adjacent?
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153. In how many ways can 5 persons A, B, C, D, E sit around a circular table so that:

(a) B and D sit together? (b) A and D do not sot together?
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154. The letters of the word ‘MOTHER’ are written in all possible orders and these words are written as in a dictionary. Find the rank of the word ‘MOTHER’.
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155. In how many different ways can 6 beads of different colours form a necklace?
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156.

(a) In how many ways can 6 white beads and 5 red beads be arranged in a line on a table?

(b) In how many ways can 6 white and 5 red beads form a necklace?

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157. How many numbers can be formed by using digits 1, 2, 3, 4, 3, 2, 1 so that odd digits always occupy odd places?
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158. How many numbers greater than 40000 can be formed by using digits 2, 4, 6, 6, 8?


Solution not provided.

Ans. 48

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159. How many different numbers of 6-digits can be formed by using the digits 3, 3, 4, 5, 5, 6? How many of them are less than 600000?
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160. The Prime Ministers of 14 countries sit at a round table. In how many ways can they sit, if Prime Ministers of India and Pakistan are not to sit together?
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