Question
Statements: All bulls are cows.
> No cow is ox. Some ox are buffaloes. All ox are cattle. Conclusion: I. Some cattle are ox. II. Some cows are bulls. III. Some buffaloes are cows. IV. Some ox are bulls. In each question below are given some statements followed by four conclusions numbered I, II, III and IV are given. You have to take the three given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.Solution
All ox are cattle (A) ⇒ Conversion ⇒ Some cattle are ox. (I). Hence conclusion I follows. All bulls are cows. (A) ⇒ Conversion ⇒ Some cows are bulls(I). Hence conclusion II follows. No cow is ox(E) + Some ox are buffaloes(I) ⇒ Some buffaloes are not cows(O*). Hence conclusion III does not follow. All bulls are cows(A) + No cow is ox(E) ⇒ No bull is a ox(E) ⇒ Conversion ⇒ Some ox are not bulls(O). Hence conclusion IV does not follow.
In a coaching institute, there are 80 mathematics teachers, 60 English teachers, 100 physics teachers, and 40 chemistry teachers. The ratio of male to f...
- The mean proportional of 8 and 50 is _____.
The ages of A, B and C are in the ratio of 5:4:8 respectively. If the sum of their ages is 51 years, then find the age of B.
Marks scored by A and B in a test are in the ratio 12:7 respectively. If B had scored 6 more marks, then marks scored by A would be 20% more than that o...
Rs 2279 was divided among Anil, Bhanu and Charan in the ratio of 16:9:18 respectively. Find the amount received by Anil and Bhanu together.
The ratio of A's age to B's age is 1:4, and the ratio of B's age to C's age is 4:5. D is 20 years older than B. Additionally, the ratio of C's age to D'...
The ages of A, B and C are in the ratio of 5:3:7 respectively. If the sum of their ages is 60 years, then find the age of B.
A total of 504 sweets were distributed among 'P', 'Q', and 'R' in the ratio of 8:7:6, respectively. Additionally, 36 cream rolls ...
If the third proportion of 45 and 60 is “0.5k”, then find the value of (k − 20) : (k + 40).
What number has to be added to each term of 5:6 to make the ratio 7:8?