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Maths Puzzle
Numerical Ability
what is the sum of all positive rational numbers that are less than 10 and that have the denominator of 30 when written in lowest terms?
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book Other Question
What is the standard form of an equation that passes through the points,
(14, 8) and (3, 11) ?
Hi, If I had a bag of marbles containing 5 green, 3 Blue and two red marbles. What is the probability of drawing the following marbles at random:
A red?
A red and then a green