81 P5.PC.JM.17083113
Level 3
The length and the breadth of a rectangle are both decreased by 20%. By how many percentage will its area be decreased by?
4 m
Percent change by Percent change Area Perimeter Rectangle
82 P5.PC.JM.17083133
Level 3
Jane gave 10% of her collection of pens to Colleen thereby increasing Colleen's collection by 25%. If Jane had 45 pens left, how many pens did Collen have at first?
4 m
Percent of a set Percent change by Units method
83 P5.PC.NK.23021709
Level 3
Luke bought a refrigerator and a laptop. The original price of the refrigerator was $3200 and the original price of the laptop was half the original price of the refrigerator. Luke was given a 25% discount on the laptop. How much did Luke pay altogether?
4 m
Percent of a whole Discount Fraction of a whole Money Units method
84 P5.PC.NK.23021711
Level 3
A furniture shop had a 30% discount storewide. The original price of a massage chair was $2300.
  1. How much was the massage chair after discount?
  2. Danny paid $2590 for a massage chair and a sofa. What was the original price of the sofa?
4 m
Percent of a whole Discount F Multiplication Money Units method
85 P5.PC.NK.23021755
Level 3
Yen had some money. She spent 40% on books and 20% of her remaining money on a blouse. She had $168 left.
  1. How much did she have at first?
  2. If the blouse was bought at a 30% discount, what was the original price of the blouse?
4 m
Percent of a whole Discount F Multiplication Money Remainder concept Units method

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