Xuan spent $54 at a stall. She took out some ten-dollar notes and five-dollar notes from her handbag to pay for the items at the cashier. She received $1 change from the cashier.
- How much money did Xuan take out from her handbag?
- How many possible number of ten-dollar notes and five-dollar notes did she take out from her handbag?
(a)
Amount that Xuan took out from her handbag
= 54 + 1
= $55
(b)
Possible number of ten-dollar notes and five-dollar notes :
10, 10, 10, 10, 10, 5
10, 10, 10, 10, 5, 5, 5
10, 10, 10, 5, 5, 5, 5, 5
10, 10, 5, 5, 5, 5, 5, 5, 5
10, 5, 5, 5, 5, 5, 5, 5, 5, 5
Number of possible number of ten-dollar notes and five-dollar notes: 5
Answer(s): (a) $55; (b) 5