The cost price of 24 articles is the same as the selling price of x articles. If the profit is 20%, then the value of x is
Let the CP of each article be Rs. 1 and hence the CP of articles = Rs. Now, SP of x articles = cost price of 24 articles = Rs. 24 Then, 24-x/x*100 = 20 ⇒ 2400 – 100x = 20x ⇒ 120x = 2400 x = 20
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In a group of 9 boys and 5 girls, 5 students have to be selected. In how many ways it can be done so that only 2 boys are included.
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8 students appear in an examination. In how many ways can the result be announced?
In how many different ways can the letter of the word ‘STRONG’ be arranged?
How many ways can 8 women and 8 men be seated around a circular table where no two women can sit together?
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