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Maths Puzzle
Numerical Ability
$700 simple interest was earned over 4 years on an investment of $2500. What was the annual rate?
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book Other Question
Students sent flowers costing $20 to a sick classmate. There were 4 fewer students contributing than was planned, requiring of the others to pay 25 cents more than their original share. How many students contributed to buying the flowers?
What is the gratest integer n that satisfies the given inequality:
(n-4)(n+4)<0