Maths Lit Worksheet - Problem Solving In Context

SAEP Matric Success – Zisukhanyo Maths Lit Worksheet Tuesday 21st April 2009 Problem solving in context 1. Calculate the following: a) 45% of 200 g c) 150% of R120

b) 15% of R5 500 d) 8,5% of 60 kg

2. A business increases its workforce from 50 to 78 people. Calculate the percentage increase. 3. Achmad compares prices at the supermarket. (i) Which of the options below is the better buy? (ii) Which of the options below is the most expensive item? a) Sugar: R11,95 for 2 kg; R13,48 for 2,5 kg or R31,10 for 5 kg b) Flour: R4,49 for 500 g; R17,13 for 2,5 kg or R27,75 for 5 kg 4. A business makes a profit of R100 000. The profit is divided between the directors in the ratio 3 : 1 : 4. How much does each director receive? 5. Three packets of cookies cost R23,97. How much do four packets cost? 6. The price of a tumble drier after a 15% reduction is R1 695,75. What is the original price of the tumble drier? 7. Which amount earns more in a year: R1 500 at 11% or R1 800 at 9% simple interest? 8. Leah lent R1 500 to her friend Anne. Leah offered the following two methods of repayment after 2 years. A: The loan plus 10% p.a. interest compounded monthly B: The loan plus 10% p.a. interest compounded semi-annually a) Calculate the amount Anne has to repay according to option A. b) Calculate the amount Anne has to repay according to option B. c) Which of the two methods would Leah perfer? Give a reason. 9. Write in scientific notation: a) 0,000504 c) 500 400 000 000

b) 139 000 000 d) 0,00000000121

10. Express as a number: a) 4,13 x 10 -3 c) 2,3 x 10 -8

b) 9,101 x 10 7 d) 5,0001 x 10 6