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Answer the following questions based on ratio and proportion

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Multiple choice

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1.

24-carat gold is pure gold. 18-carat gold is 3/4 gold and 20-carat gold is 5/6 gold. The ratio of pure gold in 20-carat gold to pure gold in 18-carat gold is

  8 : 5

  5 : 4

  5 : 8

  10 : 9

  9 : 10

  Half-n-half Clue
 

2.

A fertilizer contains 3 parts nitrogen, 2 parts phosphate and 2 parts potash by weight. The weight of fertilizer that will contain 36 pounds of nitrogen is

  63 pounds

  84 pounds

  126 pounds

  60 pounds

  90 pounds

  Half-n-half Clue
 

3.

If there are 5 to 7 plums in a pound, the maximum number of plums in 35 pounds is

  175

  245

  7

  49

  25

  Half-n-half Clue
 

4.

In a partnership, two men invest $2000 and $3000. If the net profit of $13500 at the end of the year is divided in accordance with the amount each partner invested, then the man who invested more gets

  $2700

  $4500

  $5400

  $8100

  $9000

  Half-n-half Clue
 

5.

x is proportional to y. If x = 7 when y = 8, what is x when y = 42?

  48.75

  48.25

  36

  48

  36.75

  Half-n-half Clue
 

6.

An apple costs 16 cents and a peach costs 36 cents. The ratio of the cost of a peach to the cost of an apple is

  4 : 9

  9 : 4

  9 : 5

  5 : 9

  9 : 14

  Half-n-half Clue
 

7.

If there are 16 ounces in 1 pound, the ratio of 6 ounces to 3¾ pounds is

  8 : 5

  1 : 10

  10 : 1

  2 : 1

  5 : 8

  Half-n-half Clue
 


 
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