Question

An explorer wants to cross a desert that is 7 km long.
He can walk 1 km per day and he must drink one
bottle of water a day. A maximum of 5 bottles of
water can be taken from the village. At least how
many days does the explorer need to cross the desert ?​

Answer 1

Answer:

35 bottle

km. bottle

1. 5

7. ?

cross multiplication

7×5÷1=35