[1]SOS mum wrote:Mrs Wong prepared some orange syrup in a large pot. She transferred 60% of the syrup into an empty bottle. 75% of the remaining syrup was poured in to a mug leaving 210 litres of syrup left in the pot. Given that the bottle was 70% full, how much more would Mrs Wong need to prepare to fill up the bottle completely?

2) Yvonne, Maple and Florence were given an equal number of pins to decorate their rooms. Yvonne used 60% of her pins, Florence used 20% more pins than Yvonne and Maple used 48 pins. Given that they had a total of 78 pins left, how many pins were given to each of them at first?

3) There are 15 fewer rings than bracelets in a shop. There is 21 more bracelets than necklaces. There is 23 more hairclips than rings. There is 2/9 as many necklaces as bracelets and hairclips. How many rings are there in the shop?

25% of remaining syrup = 210 litres

100% of remaining syrup = 840 litres

Since Remaining syrup = 40% of syrup,

40% of syrup = 840 litres

60% of syrup = 1260 litres

Since 60% of syrup = 70% of bottle,

70% of bottle = 1260 litres

30% of bottle = 540 litres

[2]

Y (used) = 60%

Y (unused) = 40%

F (used) = 120% of 60% = 72%

F (unused) = 28%

M (used) = 48

M (unused) = 100% - 48

Left = 40% + 28% + (100% - 48) = 78

168% = 126

100% = 75

[3]