Question

Beginning at 8:30 A. m., tours of the National Capitol and the White House begin at a tour agency. Tours for the National Capitol leave every 15 minutes. Tours for the White House leave every 20 minutes. How often do the tours leave at the same time?

Answer 1

Answer:

HIII....!!!!

TIME FOR NATIONAL CAPITAL=15MIN

TIME FOR WHITE HOUSE=20 MIN

THEY WILL MEET = LCM OF THE TWO NOS

.(BCZ OBVIOUSLY THEY WILL MEET AFTER THE TIME THAT IS GREATER THAN BOTH THE NOS.)

LCM OF 15 AND 20 =5×2×2×3

=60

SO THEY WILL MEET AFTER ONE HOUR (60 MIN)

I.E. AT 9:30 A.M.

Answer 2

Step-by-step explanation:

the national capital leave =15min

tours for the white House =20 min

LCM of the (15,20)= 5×3×4 =60min