Rev on Proportion

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    1. The number of furniture in Taste of Balinese to that in Country Collection was 6:5. After 84pieces of furniture were sold at Taste of Balinese, the ratio became 4:5. How many pieces offurniture were there in Taste of Balinese at first?

    2. Vivien used roses, lilies and gerberas for a wedding floral arrangement. She used thrice as manyroses as lilies. She used twice as many gerberas as lilies. Express the ratio of the number of roses

    to lilies to gerberas.

    3. Lucia saw 26 pigeons in the field. She saw twice as many sparrows as pigeons. She saw five timesas many mynas as sparrows. Express in ratio (in the simplest form) the number of mynas,

    sparrows and pigeons Lucia saw in the field.

    4. The ratio of the number of pupils in Pri 6A to the number of pupils in Pri 6B is 7:5. 1/5 of thepupils in Pri 6B are girls while 2/7 of the pupils in Pri 6A are boys. Express in ratio the number of

    girls in Pri 6A to that in Pri 6B.

    5. In Richard Harrys farm, there are some cows and swans. The ratio of the number of swan legs tothe number of cow legs is 3:2. If there are 80 more swan legs than cow legs, how many cows and

    how many swans are there in Richard Harrys farm?

    6. Lydia is an avid reader. The number of romance, horror and fable books she read was in the ratio6:3:5. After reading another few fables, the number of romance and fable books she read

    became the same. If she had read a total of 93 horror books, find the total number of books she

    would have read by now?

    7. The ratio of the cost of an air ticket to Thailand to the cost of an air ticket to Los Angeles is 1:6.The ratio of the cost of an air ticket to Shanghai to that of Los Angeles is 1:2. Find the cost of an

    air tickets to Shanghai if it cost $250 to fly to Thailand.

    8. Sally, Hansel and Gretel shared some durian puffs in the ratio of 8:5:4 respectively. There was atotal of 255 durian puffs. How many durian puffs did Sally and Hansel have altogether?

    9. The triangle below (not drawn to scale) has a perimeter of 86 cm.(a) What is the ratio of the shortest side to its longest side expressed in the simplest form?(b) Find its area.

    10.The ratio of the perimeter of square W to the perimeter of square Y is 4:9. What is the area ofsquare Y if x=5?

    revision on proportion

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    11.The ratio of the number of acorns Smarty Squirrel carried into his tree house on Monday,Tuesday and Wednesday was 6:4:5. How many acorns did Smarty Squirrel carry into his tree

    house on Wednesday if he carried 84 more acorns on Monday than on Tuesday?

    12.At a swimming carnival, the ratio of the number of swimmers to the number of non-swimmers is8:9. The ratio of the number of female swimmers to the number of male swimmers is 4:7. If 2/3

    of the non-swimmers are females and there are 64 female swimmers, how many male and

    female non-swimmers are there at the swimming carnival?

    13.The number of sea creatures in Underwater World to that in Ocean World was in the ratio 7:6.When 720 sea creatures were moved from Underwater World to Ocean World, the new ratio

    became 2:3. How many sea creatures are there in each place now?

    14.Mrs Yap went Christmas shopping with some $10 notes and 35 pieces of $5 notes. The ratio ofnumber of pieces of $10 notes to that of $5 notes was 10:7. After spending some $10 notes, the

    ratio of the number of $10 notes to the number of $5 notes became 2:5. The total value of the

    notes left was $315. What was the value of $10 notes left?

    15.The figure is made up of two overlapping triangles, P and Q. The ratio of the shaded area to thearea of triangle P is 8:11. The ratio of the shaded area to the area of triangle Q is 4:7. What is the

    ratio of the shaded area to the total unshaded area in the figure? (Diagram not drawn to scale)