exam Maths Puzzle Numerical Ability

A box contains ten $1 bills, six $5 bills, and four $10 bills. A person is charged $5 to select a bill. What is the expected value?

a. -$1
b. $1
c. -$2
d. -$1.50

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exam Other Question

A garden store uses a markup of 33 1/3% on cost to price items. If the store buys a planter for $9, then its selling price on this item is


a. $12.00
b. $11.70
Triangle XYZ with three segments through point p and parallel to the sides of triangle XYZ. This divides the whole region into six subregions. There are three triangular subregions