Four letters are selected from the word “CAPAME” and are rearranged to form four letter words. How many words can be formed?
120
90
180
192
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Six boys and 4 girls are to be seated in two separate rows with five chairs each, such that two particular girls are always together and all the girls are not in the same row. In how many ways can they be seated?
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10
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2
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3
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4
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5
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6
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In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together
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7
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8
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9
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