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Upper primary school mathematics question UPQ380
Sarin is given120k armbands for his team to use during the anniversary event. They are shared among 4 boys and 8 girls. Each boy received 4 arm bands.
(a) How many armbands does each girl receive? Express your answer in terms of k.
(b) If k = 2, how many armbands did each girl receive?
There are total 120k of armbands
The 4 boys has 4 armbands each
Total armbands given to the 8 girls = 120k – 4 × 4 = 120k – 16 = 8 (15k – 2)
The number of armbands each girl had = 8 (15k – 2) ÷ 8 = (15k – 2)
If k =2
The number of armbands each girl had = 15 × 2 – 2 = 28