Lowest common multiple of 3,4 and 5

60

Step-by-step explanation:

LCM= 3 x 4 x 5 = 60             [ as they all r in the lowest form]

Another way :

given in the pic ....

lcm = 2 x 2 x 3 x 5 = 60

I hope im right!!

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.