If there are 20 marbles in a bag and 1/5 are red, what fraction are red if 1 more red marble is added?
Originally, 1/5 of 20 marbles are red. 1/5 of 20 = 4. If i add 1 more we have 5 red marbles. 5/20 = 1/4.
LO
Related Maths GCSE answers
All answers ▸The line L1 has an equation y=2x-2. What is the equation of the line L2 which is parallel to L1 and passes through the point (0,3)?
Factorise x^2 - 8x - 20
There are 11 counters in a bag. 8 of them red, 3 of them green. Neville takes 2 counters from the bag. Work out the probability that Neville takes one counter of each colour.
Find the turning point of the curve whose equation is y = (x-3)^2 + 6.