Post Utme University Of Lagos Mathematics Past QuestionsQuestion 76:The average of three numbers is 49. If the difference between the largest and the smallest number is 31 and the addition of these two numbers is 99, what is the middle number? A. 84 B. 48 C. 46 D. 44 SchoolNGR.com CBT practice
Question 77:The ratio of the ages of two sisters today is 1 : 2. However, after 4 years, the ratio would be 2:3. What is the age of the eldest sister today? A. 12 years B. 8 years C. 6 years D. 10 years SchoolNGR.com CBT practice Question 78:Ade alone can complete a job in 12 days. Bayo alone can complete the same job in 18 days. If both of them work together, in how many days would the job be completed? A. 7 days B. 7.2 days C. 7.3 days D. 14/10 days SchoolNGR.com CBT practice
Question 79:Two persons A and B working together can dig a trench in 10 hours while A alone can dig it in 14 hrs. In how many hours B alone can dig such a trench? A. 15 hours B. 10 hours C. 17 hours D. 35 hours SchoolNGR.com CBT practice Question 80:A mixture contains alcohol and water in the ratio 2:1. If 3 litres of water is added to the mixture, the ratio becomes 2:3. Find the 2 quantity of alcohol in the given mixture. A. 2/3 Itrs B. 3 Itrs C. 5 litre D. 7 Itrs SchoolNGR.com CBT practice
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