QUICK QUESTIONS WITH ANSWERS FOR REFERENCE

A industrialist has 450 litres of a chemical which is 70% pure. He mixes it with a chemical of the same type but 90% pure so as to obtain a mixture which is 75% pure. Find the amount of the 90% pure chemical used. (3 Marks) : A industrialist has 450 litres of a chemical which is 70% pure. He mixes it with a chemical of the same type but 90% pure so as to obtain a mixture which is 75% pure. Find the amount of the 90% pure chemical used. (3 Marks)

The sum of two numbers m and n is 7. The sum of m and the reciprocal of n is 3 ¼. Find the two possible values of m and n. (4 Marks) : The sum of two numbers m and n is 7. The sum of m and the reciprocal of n is 3 ¼. Find the two possible values of m and n. (4 Marks)

FIND STANDARD DEVIATION OF 3, 5, 7, 9 AND 11. : FIND STANDARD DEVIATION OF 3, 5, 7, 9 AND 11.

​FATHERS OF NATIONS CHAPTER SEVEN SUMMARY (PG. 100-104) : ​FATHERS OF NATIONS CHAPTER SEVEN SUMMARY (PG. 100-104) ​Before the summit begins, the host thinks he should break the ice by going from guest to guest to create rapport.

​FATHERS OF NATIONS CHAPTER SIX (PG. 82-99) : ​It's in Banjul, Gambia, the congregation venue for the summit. The summit kicks off. Being the first day of the summit, the most important event of the day is the official opening of the summit. Key participants are the 50 heads of state.