We are asked about the relationship between Maria and John. Let's break it down:
- John's mother's father is John's grandfather.
- John's grandfather's granddaughter is Maria.
- Since Maria is the granddaughter of John's grandfather, she must be John's sister.
Thus, Maria is John's sister, and the correct answer is option (a).
Consider the relationships among P, Q, R, S, and T:
• P is the brother of Q.
• S is the daughter of Q.
• T is the sister of S.
• R is the mother of Q.
The following statements are made based on the relationships given above.
(1) R is the grandmother of S.
(2) P is the uncle of S and T.
(3) R has only one son.
(4) Q has only one daughter.
Which one of the following options is correct?
"In order to be a teacher, one must graduate from college. All poets are poor. Some Mathematicians are poets. No college graduate is poor."
Which of the following is true?
Five friends A, B, C, D, and E are sitting in a row facing north, but not necessarily in the same order:
B is to the immediate left of C
E is not at any of the ends
D is to the right of E but not next to C
A is at one of the ends
Who is sitting in the middle?
How many triangles are there in the figure given below? 