may be inequations also

Asked by  | 30th Dec, 2012, 10:42: AM

Expert Answer:

4200=n*x

4200=(n-2)*(x+500)

here n=no. of initial coolers to be bought

x=initial cost of a cooler

solving these two equations

n=

x=

here no inteegral value of n exist

for n=5

spent amount should be 4500 which

is more

 

Answered by  | 31st Dec, 2012, 11:27: AM

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