Question

21. Sohan has to deliver 4 dozen glasses to a customer.
He is paid 10 for every glass that is delivered intact
and fined 6 for every glass that he breaks. If he
is paid 352 for his work, how many glasses did he
break?​

Answer 1

Answer:

as per questions

4 dozen glasses means 4×12 =48

glasses

1 glass wroth 10

and break fine 6

let x be glasses delivered safe

and glasses break y

x+y=48 (1)

and x×10 value of safe glasses

y×6 value of broken glasses

x×10-y×6=352

10x-6y=352. (2)

multiple (1) by 6 add it into (2)

we get

6x+6y=288

10x-6y=352

16x=640

x=640/16

= 40

x+y=48

so by equation y is 8

x is no of safe glasses i.e 40

y is no of broken glasses i.e 8

8 glass he breaks

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