It takes 30 minutes to fill 20 buckets using tap A, while it takes 75 minutes to fill 35 buckets using tap B. Which 2 tap fills the buckets faster? 19. The first second and the fourth terms of a proportion are 16 4 and 77 min
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A N S W E R :
Tape A
30 minutes in 20 buckets
(30÷20) minutes in 1 bucket
1.5 minutes in 1 buckets
Tape B
75 minutes to fill 30 buckets
(75÷30) minutes to fill 1 buckets
2.5 minutes to fill 1 buckets
Tape A takes only 1.5 minutes to fill one buckets than Tape B. So Tape A fill the bucket faster.
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Answer:
In 1 hour tap A will fill = 1÷5 part of tank
In 1 hour tap B will fill = 1÷4 part of tank
so in 1hour both will fill together = (1÷5) +(1÷4)
= (9÷20)part of tank
(9÷20) part is filled in 1 hour
1 part will be filled in = 1÷ (9÷20) = (20÷9) hr
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