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Question
primary 6 | Maths
| Data Analysis
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Plz help, without using algebra, Thank u!
Date Posted: 6 years ago
Views: 445
full tank only by hose A : 6hrs
so in 1hr, 1/6 of the tank is full
full tank only by hose B: 3hrs
so in 1 hr, 1/3 of the tank is full.
if both are open for 1 hour:
1/6 + 1/3 = 1/2 of the tank will be full.
So 1/2 tank is full in 1 hour, hence full tank will take 2 hours when both hoses are open.
so in 1hr, 1/6 of the tank is full
full tank only by hose B: 3hrs
so in 1 hr, 1/3 of the tank is full.
if both are open for 1 hour:
1/6 + 1/3 = 1/2 of the tank will be full.
So 1/2 tank is full in 1 hour, hence full tank will take 2 hours when both hoses are open.
Thanks
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Date Posted:
6 years ago
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