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 6 & 3
B 5 &10
C 8 & 4
D 6 & 8

Correct Answer: 8 & 4

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
Bissoy MCQ
#গণিত #Bangladesh Bank #সম্ভাব্যতা (Probability) #Bangladesh Bank - Assistant Director - 2012

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