Question

Bob bought $1, $2, and $5 stamps using usd 20. The shopkeeper gave him three $1 stamps and different count of stamps of each denomination. How many stamps does he have in total?

Answer 1

Answer:

Total number of stamps bought = 7

Step-by-step explanation:

Number of stamps bought of $1 = 3

Total money that Bob has = $20

Left out money to bought $2 and $5 stamps = 20 - 3 = $17

So, maximum number of $5 stamps that can be bought = 3

So, number of $5 stamps bought = 3

Cost of 3 $5 stamps = $15

So, left out money = 17 - 15 = $2

So, number of $2 stamps bought = 1

Therefore, Total number of stamps bought = 3 + 3 + 1

                                                                           = 7