Answer:
Grace could buy 1 or 2 bananas and not more than that and hence she cannot make the total count of fruits tleast 13.
Step-by-step explanation:
Cost of 1 banana = $0.5
Cost of 1 mango = $0.75
Total money Grace has = $7.25
Grace has decided to buy 8 mangoes costing = 8 \times 0.75
= $6
Grace has to buy a minimum of 13 mangoes and bananas altogether.
After Grace buy 8 mangoes , money remaining with her = 7.25 - 6
= $1.25
With the remaining money she has to buy bananas which cost her $0.5 each.
With $1.25 she can buy a maximum of 2 bananas only and the total number of fruits equals 10.
Hence it is not possible to buy 13 fruits altogether.