book Maths Puzzle Numerical Ability

Find the area of a parallelogram with side lengths of 8 and 14 feet and an interior angle measure of 40 degrees.

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book Other Question

Find log7 12 (to four decimal places)

the seven is a little seven
In a certain country, there is a bank failure once every six days, on average. What is the probability of at least one bank failure in the next 30 days?

Is this set up 1 less 1/6?