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Monday, March 4, 2013

Civil Service Commission Professional or Sub-Professional Reviewer - Page 94/159

Mathematics Test IV Solution - Page 94

6. If 3 feet = 1 yard, how many yards are there in 27 feet ?

3 feet : 1 yard = 27 feet : x yard

3 : 1 = 27 : x
   3x = 1(27)
   3x = 27
     x = 27 / 3
     x = 9 yards * Ans.

7. How many feet are there in 9 and 1/3 yards ?

Given that 1 yard = 3 feet :

1 yard : 3 feet = 9 ⅓ yards : x feet

1 : 3 = 9 ⅓ : x
1(x) = 3(9 ⅓)
    x = 3 (28/3)
    x = 28 feet * Ans.

8. A hand-carved wooden dining set is priced at $69, 950. If 20% discount is given to the customer, how much would he have to pay for the set ?

Net Price = $ 69, 950 - 20 ($69,950)
               = $ 69, 950 - $13,390
               = $ 55, 960 * Ans.

9. If an article priced at $99.80 is subjected to a 10% VAT, what would be the total amount to be paid for the article ?

Total Amount to be paid = $ 99.80 + 0.10 ($99.80)
                                      = $ 99.80 + $ 9.98
                                      = $ 109.78 * Ans.

10. Find the cost of 6 and 1/2 dozen eggs at $ 30.00 per dozen.

1 dozen : $ 30.00 = 6 and 1/2 dozens : x dollars

1 : 30 = 6.5 : x

1(x) = 30 (6.5)

x = $ 195.00 * Ans.

Civil Service Reviewer Post 94/159