Answer:
x= 4
Step-by-step explanation:
4 x 4= 16
First we will calculate rate of work of rosa and amy.
work done by rosa in time t=t*1/7
Work done by Amy and rosa=t(1/7+1/4.2)
t/7+t/a=t/4.2
t=10.5 hr
Always keep remember those formula or logic belowWork rate × Time to finish the job = 1 job done
Work rate = (1 job done) / (Time to finish the job)
Time of doing the job = (1 job done) / (Work rate)
Answer:
144 and 18
Step-by-step explanation:
18 ×24=432÷3=144
54 63 75 that’s in order 1.54 2.63 3.75
