SOLUTION: There are two wells at a farm. Grandma comes to collect water from the left well every 24 days, while Grandpa comes to collect water from the right well every 18 days. Today they b

Question 985544: There are two wells at a farm. Grandma comes to collect water from the left well every 24 days, while Grandpa comes to collect water from the right well every 18 days. Today they both come to collect water from the wells. How many days will have passed when they both come to collect water at the same time again?
A. 6
B. 36
C. 48
D. 72
E. 432
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
It is the least common denominator problem. Start with the greater number and keep increasing it seeing if the lesser number divides into it. At 72, you have 3*24 and 4*18. The answer is D.
RELATED QUESTIONS
it is Monday, and Harry,Sammy and Dave are all playing together in the park. if harry... (answered by ankor@dixie-net.com)

This is word problem: There are 4 people who need to get across a bridge at night... (answered by darq)

How do I calculate; I have 2 wells, well A produces water with 18 ppb of a mineral Well (answered by josmiceli)

Every 21 days Janice visits her grandma and every 29 days she visits her grandpa, how... (answered by josgarithmetic)

a mountain shoots out water that follows a parabolic curve. water comes out of a point... (answered by lwsshak3)

a fountain shoots out water that follows a parabolic curve. water comes out of a port on (answered by Theo)

A department store is holding a drawing to give free shopping sprees to two lucky... (answered by macston)

What is the minimum number of students, each of whom comes from one of the 50 states, who (answered by richard1234)

Please help me to solve this problem. A fountain shoots out water that follows a... (answered by solver91311)