SG
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Primary 6
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Number and Algebra
please help
Replies
2
Raymond Ng
6 years ago
Lesley Lim
thank u so much
6 years ago
Mavis Lim
Asked 9 years ago
SG
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Primary 5
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Number and Algebra
thanks in advance
Replies
8
Caleb Tey
6 years ago
Mavis Lim
thank u very much
6 years ago
Caleb Tey
BTW I uses 48 as the total units required for the wall. You can use any number u want. But I used 48 since 8x6.
6 years ago
Lesley Lim
6 years ago
Mavis Lim
thanks lesley lim and caleb tay, really thanks for help ;)
6 years ago
Xavier Sng
Just a variation:
The lowest common multiple of 8 and 6 is 24.
In 24 days, Ramesh can build 3 walls and Guo Hua 4 walls.
In 24 days the both of them can build 7 walls in all.
To build 1 wall, the both of them will need 24 days ÷ 7 = 3 and 3/7 days