snell's answer to Kongqianying's Primary 5 Maths Whole Numbers question.

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snell
Snell's answer
333 answers (A Helpful Person)
1st
1st possible blue line connection:
current travels from
(i) X to A to D to Y
(Ii) X to F to D to Y

2nd possible red line connection:
current travels from
(i) X to A to F to D to Y
(Ii) X to F to D to Y

3rd possible green line connection:
current travels from
(i) X to A to D to Y
(Ii) X to F to A to D to Y


hope this helps.