exam Maths Puzzle Numerical Ability

Solve. 4(x+2)-3x=x-6

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exam Other Question

Use the geometric sequence of numbers 1,1/2,1/4,1/8,... to find the following: (a) What is r, the ratio between 2 consecutive terms? (b) Using the formula for the sum of the first 5b+8 divided by 3<3b