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Secondary 1 | Maths
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Sec 1 equation
Date Posted: 3 years ago
Views: 196
Let the job = x
Pauline
2 hour → x
1 hour → x/2
Anna
3 hour → x
1 hour → x/3
Both, 1 hour = x/2 + x/3 = 5x/6 job.
To complete,
= x÷ 5x/6
= x×6/5x
= 6/5
= 1 1/5 hour
Or
= 1 hour 12 mins
Pauline
2 hour → x
1 hour → x/2
Anna
3 hour → x
1 hour → x/3
Both, 1 hour = x/2 + x/3 = 5x/6 job.
To complete,
= x÷ 5x/6
= x×6/5x
= 6/5
= 1 1/5 hour
Or
= 1 hour 12 mins
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