Level 3
On 1 May to 4 May, an average of 50 waffles were sold and from 5 May to 9 May, an average of 24 waffles were sold. $240 worth of waffles were sold from 10 May to 20 May. Given that a waffle was sold for $2, find the average number of waffles sold from 1 May to 20 May.
Level 3
Perry spent $162 on a jumpsuit. He spent 19 of his remaining money on a sweater. If he still had 49 of his money left, how much did he have at first?
Level 3
Risa had a sum of money. She spent $308 on a blouse and 58 of the remainder on a windbreaker. She was left with 110 of the original sum of money.
Level 3
One book costs $48 at a shop. During a sale, for every 3 books bought, the 4th book can be bought at a discount of 15% off the original price. How many books does Ron buy if he pays $1944 altogether?
Level 3
Mrs Lu had a sum of money. She gave her daughter $246 and gave 14 of the money to her niece. She used 34 of the remaining money on a computer and was left with 16 of the amount she had at first. What was the sum of money she had at first?
