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Question

ozora

PSLE Mathematics

Question post on Sun, 22/04/2018 12:39am

Appreciate any help on this length question.

thanks

Source: Nanyang Primary

Answer

alfretztay · Answer 1 · Post on Sun, 22/04/2018 12:36pm

LCM of 8 and 12 = 24
In every 2.4 m —
top part of wall had: 3 x 3 = 9 (sun signs) and 2 x 3 = 6 (music signs)
bottom part of wall had : 6 x 2 = 12 (sun signs) and 3 x 2 = 6 (music signs)
9 + 12 – 6 – 6 = 9 (more sun signs in every 2.4 m)
108/9 = 12
12 x 2.4 = 28.8

Ans : 28.8 m.

ozora · Answer 2 · Post on Tue, 24/04/2018 5:55pm

ozora Post on Tue, 24/04/2018 5:55pm

thanks appreciate the highlight of using LCM

alfretztay · Answer 3 · Post on Tue, 24/04/2018 8:49pm

alfretztay Post on Tue, 24/04/2018 8:49pm

It is my pleasure.

ozora · Answer 4 · Post on Tue, 24/04/2018 5:55pm

ozora Post on Tue, 24/04/2018 5:55pm

thanks appreciate the highlight of using LCM

alfretztay · Answer 5 · Post on Tue, 24/04/2018 8:48pm

alfretztay Post on Tue, 24/04/2018 8:48pm

You are most welcome.