This is a tough question that helps with a bit of guessing (yes guess and check is a valid method). “In a school, the ratio of the number of pupils who wear glasses to the number of pupils who do not wear glasses is 11 : 5. 2/3 of the boys and 7/10 of the[…]
The figure below shows a black and white table mat that Mrs Lee bought. The diameter of each circle is k cm. (take pi = 22/7) a) find the perimeter of the table mat in terms of k. b) Mrs Lee placed the mat on a table which is 0.85m long and 0.5m wide.[…]
This is a difference / ratio question. In a packet of mixed nuts, 40% are cashew nuts while the rest are peanuts.After 12 cashew nuts are removed from the packet and 24 peanuts are added, the cashew nuts make up 33 1/3% of the nuts in the packet. How many cashew nuts are there in[…]
Some questions are quite creative. They are original and force you to think. “Four children decided to find out their total mass. As they did not want their friends to know their individuals mass, the children decided to weigh themselves 3 persons at a time. Although the children tried all possible ways of grouping themselves[…]
Maths tip: Some questions seem so convoluted it makes you wonder who invents these. They are unfortunately part and parcel of the examination process so we can only fold up our sleeves and get down and dirty with them. Here’s one example: “Jamie spend $6 less than 4/7 of her money on a dress. She[…]