Answer:
36 hamburgers.
Step-by-step explanation:
He sold 81 hot-dogs, that's 9 unit.
9 units → 81
1 units → (81/9)
1 units → 9
4 units → 36
Therefore vendor sold 36 hamburgers.
For each boy, there are 5 girls
8
i think ur question is wrong
hrs =4
550-11
200-x
cross multiply
550x=200×11
550÷550=2200÷560
x=4
