5 spraying machines working together can finish painting a house in 36 minutes. If 2 machines break down then in how much time can the remaining machine complete the job?
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20
5 machine iN 36 min
1 machine 36/5
=7.2min
3 machines =7.2×3
=21.6 min
there fore the work can be done in 21.6+36=57.6
is it correct plzzz let me know
1 machine 36/5
=7.2min
3 machines =7.2×3
=21.6 min
there fore the work can be done in 21.6+36=57.6
is it correct plzzz let me know
juhi4126:
no it is not right
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8
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