exam Maths Puzzle Numerical Ability

find the least common denominator of 8a+32, a^2+4a

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exam Other Question

It takes the earth 1.0 years to travel around the sun. It takes Venus 0.615 years to orbit the sun. If the planets are in a straight line with the sun now, how long will it take before this is the case again? a developer purchased 70 acres of land for 900000 dollars. if part costs 20000 dollars per acre and the remainder cost 10000 per acre how many acres did the developer buy at each price.