One morning last summer Ravi carried out a survey of the birds in the school garden.?

K

Khaliun N

New member
He saw 5 pigeons, 20 crows, 25 seagulls and 45 sparrows.
a. Complete the ratios.
Pigeons:1
Crows:?
Seagulls:?
Sparrows:?
b. What percentage of all the birds Ravi saw were sparrows?
c. One morning this spring Ravi carried out a second survey, This time he saw:
The same number of pigeons
25% fewer crows
60% more seagulls
two thirds of the number of sparrows.
Write down the new ratio of pigeons:crows:seagulls:sparrows
 
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