Page 7 - Digi Notes : Maths - 11.03.2016
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4. In a Zoo, there are rabbits and pigeons. If heads are
counted, there are 200 and if legs are counted, there are

580. How many pigeons are there?




Legs /Animals  580 Legs  9 . 2 Legs / Animals
200
Legs Pigeons Legs Rabbits

2 4

9 . 2

1 . 1 : 9 . 0


P : R  11 ; 9 : Therefore Pigeons  200  11 110
11 9



5. The present population of a town is 5000. If the number

of the males is increases by 10% while the number of the

females increases by 15%; the population of the town

increases to 5600. Find the numbers of the males:

1. Before the increase

2. After the increase




























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