| Problem |
Detailed workings |
#1 : John bought a bag at 20% discount. If he paid $100 for it, how much is its original price?
Ans: $125
|
80% |
- |
$100 |
100% |
- |
|
|
= |
$125 |
|
#2 : A bag cost $100. If John gets a 20% discount, how much should he pay for the bag?
Ans: $80
|
100% |
- |
$100 |
80% |
- |
$100 × 0.8 |
|
= |
$80 |
|
#3 : The cost price of a bag is $100. If John wants to make a 20% profit, how much should he sell the bag for?
Ans: $120
|
100% |
- |
$100 |
120% |
- |
$100 × 1.2 |
|
= |
$120 |
|
#4 : John sold a bag for $100. If he made a 20% profit, what is the cost price of the bag?
| Ans: |
 |
|
120% |
- |
$100 |
100% |
- |
|
|
= |
|
|
