NOUN TMA Questions with Solutions – ECO153, Introduction To Quantitative Methods
1 (7⅗ of 17⁄ 19) ⁄ 15⁄25
11⅓
2 1 6⁄9 of ⅔ – 3⅕ + 2½ ⁄ ½
2 41⁄45
3 An imaginary number is a number that has
negative square root
4 An improper fraction is classified as
3⁄2
5 convert ratio 4:5 to percentage
0.8
6 Express 5hrs as a ratio of 1week and 2days
5⁄216
7 Express the fraction in the lowest possible equivalent 16x⁵y⁴ * 48xy⁄ 32xy* 24x3y2
x²y³
8 Factor the polynomial 4x²+20x+3xy+15y
(4x+3y)(x+5)
9 For selling an item for N850 a trader made a profit of 15%. What should be selling price be to make a profit of 20%.
887
10 Given that factor over head is ⅖, prime cost is ⅕. Calculate the fraction of the total spent on other items.
⅖
11 It took 7men 35hours to build a house. How much time will it take 12 men working at the same rate to finish the house.
20hrs 42mins
12 Make x the subject of the formula L= xh⁄ a(x+p)
x= ap ⁄ h – L a
13 Simplify √27 * √50 ⁄ √54
17
14 Simplify 1⅓ + (2⁄4 of 12⁄ 16) – ⅚
7⁄8
15 simplify 3½ – 2 7/12
11⁄12
16 Simplify and solve for x, given (0.125)x+1 = 1⁄64
1
17 Simplify without using table log₅12.5 + log₅2
2
18 The LCM of 14a²b²,7ab and 28ab² is
28a²b²
19 The ratio by weight (kg) of zinc, tin and copper are 4:3:3, if the work requires 640kg alloy, what is the required kg for zinc
256kg
20 Which of the these is an imaginary
√-4
