Esther baked pandan, durian and strawberry wafers. There were one-third as many strawberry wafers as durian wafers and an equal number of strawberry wafers as pandan wafers. The cost of each wafer is given as shown.
1 strawberry wafer: $1.90
1 durian wafer: $1.50
1 pandan wafer: $1.10
If she collected $300 from selling all the wafers, how many durian wafers were there?
1 strawberry wafer: $1.90
1 durian wafer: $1.50
1 pandan wafer: $1.10
If she collected $300 from selling all the wafers, how many durian wafers were there?
