Question 21: A bicycle wheel of radius 42cm is rolled over a distance of 66m. How many revolutions does it make?
Question 22: In a bag of oranges, the ratio of the good ones to the bad ones is 5:4. If the number of bad ones in the bag is 36, how many oranges are there altogether?
Question 23: A man is four times as old as his son. The difference between their ages is 36. Find the sum of their ages.
(a) 45 years`
(b) 48 years
(c) 60 years
(d) 74 years
Question 24: If 4m+3n = 5, find the ratio m:n 4m-3n 3
Question 25: If 2x : (x+1) =3:2, what is the value of x?
Question 26: The ratio of the number of men to the number of women in a 20 member committee is 3:1. How many women must be added to the 20 member committee so as to make the ratio of men to women 3:2 ?
Question 27: Three men, Bedu, Bakare and Kofi shared N500 in the ratio 3:2:x respectively. If Bedu’s share is N150, find the value of x.
Question 28: The sides of two cubes are in the ratio 2:5, what is the ratio of their volumes?
Question 29: Lena bought 400 Alpha Company shares at N1.50 each and sold them at N2.05 each. What was her gain?
Question 30: Amma buys 100 oranges at 20 for C 30.00 and another 200 oranges at 4 for C 10.00. If she sells all her oranges at C3.00 each, what was her profit?