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Liula [17]
3 years ago
5

A gardener can care for the Green's property in 5 hours. If his helper assists him, they can complete the job in 4 hours. How lo

ng will it take the helper to do the job?
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
6 0

Step-by-step explanation:

Fraction of work done by Gardner in 1 hr = 1 / 5

Fraction of work done by Gardner and helper in 1 hr = 1 / 4

Fraction of work done by helper in 1 hr

= 1 / 4 - 1 / 5

= 1 / 20

<u>Time required by helper to complete work</u> :

= <u>20 hours</u>

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