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Online Quiz (Worksheet A B C D)

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Grade 6 - Mathematics
7.12 Proportion - I

  • Proprortions are equal ratios.
  • If two ratios are equal, then four numbers forming the two ratios in order are said to be in proportion.

That is, if a:b = c:d, then a,b,c and d are said to be in proportion.

Proportion a:b = c:d is also denoted by a/b = c/d or a:b :: c:d and is read as
"a is to b as c is to d".

Example: Distance travelled in 4 hours is 200 miles, and distance travelled in 7 hours is 350 miles.
Ratio of times = 4:7
Ratio of distance travelled = 200:350, simplify this we get 4:7.
Therefore, Ratio of times = Ratio of distances
That is, 4:7 = 200:350

Directions: Express the given terms in the form of proportion as shown in the above example. Also write at least ten examples of your own.
Q 1: The cost of 5 pens is 25 and the cost of 30 pens is 150.

Q 2: Distance travelled in 5 hours is 250 miles and distance travelled in 6 hours is 300 miles.

Q 3: Cost of 15 books is 75, and the cost of 18 books is 90.

Q 4: Cost of 5 books is 25, and the cost of 10 books is 50.

Question 5: This question is available to subscribers only!

Question 6: This question is available to subscribers only!

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