In a group of cows and hens the number of legs...

Home / Competitive Reasoning / Arithmetic Reasoning / Question

Examveda

In a group of cows and hens, the number of legs are 14 more than twice the number of heads. The number of cows is

A. 5

B. 7

C. 10

D. 12

Answer: Option B

Solution (By Examveda Team)

Let the number of cows be x and the number of hens be y.
Then, 4x + 2y = 2 (x + y) + 14 ⇔ 4x + 2y = 2x + 2y + 14 ⇔ 2x = 14 ⇔ x = 7.

This Question Belongs to Competitive Reasoning >> Arithmetic Reasoning

Join The Discussion

Comments (1)

Avinash Kumar:

8 years ago

then X is the no of cows and how many hens are there ?

Related Questions on Arithmetic Reasoning

The total of the ages of Amar, Akbar and Anthony is 80 years. What was the total of their ages three years ago ?

A. 71 years

B. 72 years

C. 74 years

D. 77 years

View Answer

View Answer

Two bus tickets from city A to B and three tickets from city A to C cost Rs. 77 but three tickets from city A to B and two tickets from city A to C cost Rs. 73. What are the fares for cities B and C from A ?

A. Rs. 4, Rs. 23

B. Rs. 13, Rs. 17

C. Rs. 15, Rs. 14

D. Rs. 17, Rs. 13

View Answer

View Answer

An institute organised a fete and 1/5 of the girls and 1/8 of the boys participated in the same. What fraction of the total number of students took part in the fete ?

A. 2/13

B. 13/40

C. Data inadequate

D. None of these

View Answer

View Answer

A number of friends decided to go on a picnic and planned to spend Rs. 96 on eatables. Four of them, however, did not turn up. As a consequence, the remaining ones had to contribute Rs. 4 each extra. The number of those who attended the picnic was

A. 8

B. 12

C. 16

D. 24

View Answer

View Answer

More Related Questions on Arithmetic Reasoning