Ina zoo , each pigeon has 2 legs, and each rabbit has 4 legs. The head count of the two species together is 12 , and the leg count is 32. How many pigeons and how main rabbits are there in the zoo ?

Created: 7 years ago | Updated: 1 month ago

Updated: 1 month ago

6 & 3

5 &10

8 & 4

6 & 8

None of them

Bangladesh Bank Bangladesh Bank - Assistant Director - 2012 গণিত সম্ভাব্যতা (Probability)

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প্রশ্ন: Ina zoo , each pigeon has 2 legs, and each rabbit has 4 legs. The head count of the two species together is 12 , and the leg count is 32. How many pigeons and how main rabbits are there in the zoo ?

A/Q,
x + y = 12
or, 2x + 2y = 24 ....................... (1)
2x + 4y = 32 ............................ (2)
(2) - (1) we get,
2y = 8
or, y = 4 ......(3)
Now, from (1) and (3), we get,
x + 4 = 12
or, x = 12 - 4
or, x = 8

7 years ago

0 0

Md Azizur Rahman

FOUNDER OF SATT

Let,

R=X, P=(12-X)

A/Q,

4X + 2(12 - X) = 32

4X + 24 - 2X = 32

2X = 8

X = 4

Rabbit = 4

pigeon =(12-X)=12-4=8

P=8, R=4

2 years ago

0 0

Shanta Barua

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Eusuf

Ina zoo , each pigeon has 2 legs, and each rabbit has 4 legs. The head count of the two species together is 12 , and the leg count is 32. How many pigeons and how main rabbits are there in the zoo ?

প্রশ্ন: Ina zoo , each pigeon has 2 legs, and each rabbit has 4 legs. The head count of the two species together is 12 , and the leg count is 32. How many pigeons and how main rabbits are there in the zoo ?

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