exam Maths Puzzle Numerical Ability

A log is cut into 4 pieces in 12 seconds. How long would it take to cut the same log into 5 pieces. The answer is not 15.

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26) Business and finance. Ms. Jordan has been given a loan of $2500 for 1 year. If the interest charged is $275, what is the interest rate on the loan? A car rental compan has two rental rates. rate 1 is $72 per day plus $0.16 per mile. Rate 2 is $144 per day plus $0.08 per mile. If you plan to rent for one week, how many miles would you need to drive to pay less by taking rate 2?