Book Maths Puzzle

In how many ways can 5 man draw water from 5 taps if no tap can be used more than once?

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ans is 120
9 years agoHelpfull: Yes(1) No(0)

5p5 (5 permutation 5)= 5*4*3*2*1;
.................................... = 120';
9 years agoHelpfull: Yes(0) No(0)

Book Other Question

Two employees X and Y are paid a total of Rs. 550 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week? How many factors of 2^5*3^6*5^2 are perfect squares?