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Civil Service Commission Professional or Sub-Professional Reviewer - Page 95/159

Mathematics Test IV Solution - Page 95

11. A lady employee purchased an umbrella for $ 180 less 20%. How much should she pay if its is subject to a 5 % sales tax ?

Total Amount = ($180 - 0.20 x $ 180) x (1.05)
to be paid
                      = ($180 - 36) (1.05)

                      = $144 x 1.05

                      = $ 151.20 * Ans

12. Mr. Mansueto Velasco Jr. is buying a piece of lot at Filinvest Homes East. The dimension of the rectangular lot is 14 meters by 30 meters at $ 3, 500 per square meters, what would be the total cost of the lot ?

Total Cost = area x price per unit area
of the lot
                 = (14 x 30) sq. meters x  $ 3, 500 
                                                      sq. meters

                 = 14 x 30 x $3,500

                 = $ 1, 470, 000 * Ans.

13. How much must a salesman sell in a month to yield him a commission of $ 12, 000, if his rate of commission is 5% on goods sold ?

Sales = Commission / Rate

         = $ 12, 000 / 0.05

         = $ 240, 000 * Ans.

14. How much would Charlie receive from his monthly salary of $ 8,000 after deducting 2 and 1/2 % for SSS contribution and 5% withholding tax ?

Total Rate of deductions = 2 ½ % + 5 % = 7 ½ %

Net Pay = Regular pay ( 1 - rate of deductions )
             = $ 8, 000 ( 1 - 0.075 )
             = $ 8, 000 ( 0.925 )
             = $ 7, 400 * Ans.

Civil Service Reviewer Post 95/159