19/06/2020
It is Time!
Mathematics
*INSTRUCTION -- All the questions are compulsory.
Question 1
120 people with Corona virus discovered in Lagos gave high temperature, sneezing and sore throat as the symptoms they had. If 72 patients have high temperature, 78 patients have sore throat, 64 patients sneeze uncontrollably, 26 patients have high temperature and sneeze, 33 patients have high temperature and sore throat, 37 patients sneeze and have sore throat. How many patients have:
(a) the three symptoms?
(b) sore throat only?
Question 2
If according to NCDC, the probability that a patient recovers from coronavirus is 4/5. What is the probability that out of three coronavirus patients only one will die?
Question 3
After about a week in an isolation centre, 18 patients were discharged, 4 died and 21 are still under treatment. What percentage of the patients at the beginning of the week in the isolation centre was discharged?
Question 4
Assuming in the past few weeks, the number of coronavirus increases geometrically and the number of cases recorded across the globe in the first three weeks were 128, 640 and 3200 patients respectively. (a) At what ratio does this occur? (b) After how many weeks will the number of cases be 80000?
Question 5-
Accounting Mathematics
If the cost of feeding people at home during coronavirus outbreak in Nigeria is proportional to the number of people to feed. If #15,000 can feed 20 people in one week, how much does the government need to feed 50 0000 people in a community for two weeks? ( Assuming everyone is entitled to the same amount or food items)