Answer:
A) 8.06
Step-by-step explanation:
Edge21
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)
The question is an example of a ratio problem. This implies that

Therefore, le the number of domestic vehicles be x. We can say that;

Answer: 1458
Answer:
Hope this solution helps you
3% = 800/ 100 = 8, 8x3= 24
800-24 = 776
£776