In how many ways can a music teacher arrange 24 students in 3 rows? 12,144
9240
10,626
7980

To solve this, we use the permutations formula:

nPr

substitute n for 24, and 3 for r:

nPr

= 24 P 3

= 12144

Answer

1) 12144

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers