Sam can mow a lawn in 20 min, while takes 10 min longer to mow the same lawn. How long will they take to mow the lawn if they work together?

Sam can mow a lawn in 20 min, while takes 10 min longer to mow the same lawn. How long will they take to mow the lawn if they work together? ?

Created: 1 year ago | Updated: 1 week ago | Created By:

Ahsanur Rahman

12 min

14 min

15 min

more than 15 min

0 10

Institution: SONALI BANK LTD Exam: Sonali Bank Ltd - Assistant Programmer - 26.08.2016 ||
Topic: Mathematics (সাধারণ গণিত) Subject: Mathematics (সাধারণ গণিত)

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If a, b and c are 3 consecutive integers and a>b>c, Which of the follwoing has the maximum value?

If two planes leave the same airport at 1:00 pm, how many km apart will they at 3:00 one traverls directly at 150 km/h and the other travels directly west at 200 km/h?

Sam can mow a lawn in 20 min, while takes 10 min longer to mow the same lawn. How long will they take to mow the lawn if they work together? ?

If a, b and c are 3 consecutive integers and a>b>c, Which of the follwoing has the maximum value?

If two planes leave the same airport at 1:00 pm, how many km apart will they at 3:00 one traverls directly at 150 km/h and the other travels directly west at 200 km/h?

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