Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

primary 5 | Maths | Fractions
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Tsl
Tsl

primary 5 chevron_right Maths chevron_right Fractions chevron_right Singapore

Kindly help me solve this math question. Thank you

Date Posted: 4 weeks ago
Views: 16
snell
Snell
4 weeks ago
A:
5h fill 1 tank
1h fill 1/5 tank

B:
6h fill 1 tank
1h fill 1/6 tank

C:
3h fill 1 tank
1h fill 1/3 tank

together, 3 taps fill
1/5 + 1/6 + 1/3 = 7/10
[ 1/5 + 1/6 + 1/3 = 1/5 + 1/6 + 2/6
= 1/5 + 3/6
= 1/5 + 1/2
= 2/10 + 5/10
= 7/10
]


...
Tsl
Tsl
4 weeks ago
Thank you very much for helping resolved the math problems.
snell
Snell
4 weeks ago
welcome

See 1 Answer

Tank A took 5h to fill tank. So in 1h it fills 1/6 of it.
Tank B took 5h to fill tank. So in 1h it fills 1/5 of it.
Tank C took 3h to fill tank. So in 1h it fills 1/3 of it.
So if all 3 were turned on at the same time,fraction of the tank that's filled in 1h
= 1/6 + 1/5 + 1/3
= 5/30 + 6/30 + 10/30
= 21/30
= 7/10
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
J
J's answer
192 answers (A Helpful Person)
1st
Tsl
Tsl
4 weeks ago
Thank you very much for helping resolved the math problems
Tsl
Tsl
4 weeks ago
Thank you very much for helping resolved the math problems
J
J
4 weeks ago
Welcome. The way to add the fractions up is to change the denominator to the same one. Then simplify the final fraction. There's a typo, it should be Tap instead of Tank
Tsl
Tsl
4 weeks ago
Well noted with thanks