why dont we post maths, sci, geog and eng compres on the blog along with their answers?That way, we can help each other to revise.
here, i'll set an example, but due to time constraints, I'll can't give answers to the questions. If you have time, pls edit this post and add the solutions and/or answers:
Question 1:A boy ran for 30 minutes at the speed of 14 km/h and walked for
x hours at the speed of 2 km/h. The whole journey is 20 km.
I) Write down an equation in
x.
II) By solving the equation, find the average speed of the whole journey.
Question 2:Find the HCF of 96,144 and 136
Question 3:Correct 2 974 936 to
I) The nearest 1000
II) Two significant figures
Question 4:The length and width of a rectangle measured to the nearest 0.1 cm are 12.3 and 11.4 cm respectively. What is the least possible area of the rectangle?
Question 5:Check if the postal code 309437 is divisible by 8, 9 or 11
Question 6:a) Express the following in two significan figures:
I) 688.32
II) 0.02035
b) Hence , estimate correct to 1 significant figure, the value of 688.32*0.02035