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Monday, March 4, 2013

Civil Service Commission Professional or Sub-Professional Reviewer - Page 96/159

Mathematics Test IV Solution - Page 96

15. A student had $ 1, 050 in his wallet. He spent $ 640 for books and school supplies. What part of his money did he spend?

Part of the money spent =   $ 630 / $ 210 
                                         $ 1050 / $ 210

                                     = 3 / 5 * Ans.

16. MS. Cecille Garcia saves 18% of her monthly salary of $ 16, 500. How much does she saved in a year?

Amount of money saved = 0.18 x  $ 16, 500  x 12  month 
                                                       month               year

                                      = 0.18 x $ 16, 500 x 12

                                      = $ 35, 640 * Ans.

17. Mrs. Leny Ngo wishes to buy a second hand car, the cash price of which is $ 150, 000. Not having ready cash she agrees to pay 1/3 down and the balance in 10 monthly installments of 11, 000 each. What is the total price of the car ?

Total price of the car =  x $ 150, 000 + 10 x $ 11, 000

                                = $ 50, 000 + $ 110, 000

                                = $ 160, 000 * Ans.

18. A cross-stitch store owner buys cross-stitch frame at $ 12, 500 each. How much should he sell each in order to realize a profit of 3/20 more than the buying price ?

Selling price          =          $ 12, 500 x ( 1 +  3  )
                                                                    20

                            =          $ 12, 500 ( 23 )
                                                          20

                            =          $ 14, 375 * Ans.

Civil Service Reviewer Post 96/159