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Question

P6 Mathematics

Question post on Sat, 17/02/2018 11:20pm

Pls help to solve this qn.

Answer

Khong Pek Mao Post on Sun, 18/02/2018 9:53am

This is a Before After question.

	Before	Transfer	After
20 cent	3u	-15	3u – 15
50 cent	2u	+6	2u + 6

(3u – 15) /19 = (2u + 6) / 18

54u – 270 = 38u + 114

54u – 38u = 270 + 114

16u = 384

1u = 384 ÷ 16 = 24

3u = 24 × 3 = 72

72 × 0.2 = $14.40

2u = 2 × 24 = 48

48 × 0.5 = $24

14.40 + 24 = $38.40