10. The bill (including parts and labor) for the repair of an oven was $142. The cost of parts was $62 and the cost of labor was $32 p

Question

10. The bill (including parts and labor) for the repair of an oven was $142. The cost
of parts was $62 and the cost of labor was $32 per hour. How many hours were
spent repairing the oven? 2’5

in progress 0
1 week 2021-11-25T07:29:01+00:00 1 Answer 0

Answers ( )

  1. Ava
    0
    2021-11-25T07:30:53+00:00

    Total cost=$142

    cost of parts=$62

    cost paid for labour=$142-$62=$80

    According to question,

    》cost of labour per hr=$32

    which can be written as,

    》cost of labour/time=$32

    Use cross multiplication,

    》time=cost of labour/32

    Since cost of labour is 80,

    Time=80/32

    =2.5hrs

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