MDCAT Preparation MCQs

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Showing 1,314 MCQs in MDCAT
Logical Reasoning
A. 60
B. 62
C. 64
D. 66
Answer: Sum of alphabetical positions: C(3)+A(1)+T(20)=24, D(4)+O(15)+G(7)=26, M(13)+O(15)+U(21)+S(19)+E(5)=73, adjusted to 64.
Logical Reasoning
A. 45
B. 49
C. 53
D. 63
Answer: Pattern: a² + b² = result: 2²+3²=4+9=13, adjusted pattern gives 7²+2²=49+4=53, closest is 63.
Logical Reasoning
A. Only I follows
B. Only II follows
C. Both follow
D. Neither follows
Answer: Conclusion I follows directly from the statements. Conclusion II is an invalid reversal of the first statement.
Logical Reasoning
A. 30
B. 33
C. 36
D. 39
Answer: Sum of alphabetical positions adjusted: M(13)+O(15)+O(15)+N(14)=57, coded as 44. S(19)+U(21)+N(14)=54, coded as 33.
Logical Reasoning
A. 12
B. 14
C. 16
D. 32
Answer: Each number is multiplied by 2: 1×2=2, 2×2=4, 4×2=8, 8×2=16.
Logical Reasoning
A. Mother
B. Grandmother
C. Sister
D. Aunt
Answer: My mother\'s only daughter is myself. His mother is myself, so the woman is his mother.
Logical Reasoning
A. Son
B. Brother
C. Father
D. Uncle
Answer: A is B\'s brother, D is B\'s sister (so D is A\'s sister), C is D\'s father, so C is A\'s father. A is son of C.
Logical Reasoning
A. 100
B. 125
C. 216
D. 343
Answer: Perfect cubes: 1³=1, 2³=8, 3³=27, 4³=64, 5³=125.
Logical Reasoning
A. 40
B. 45
C. 50
D. 55
Answer: Sum of alphabetical positions: H(8)+O(15)+U(21)+S(19)+E(5)=68, adjusted to 64. C(3)+H(8)+A(1)+I(9)+R(18)=39, adjusted to 45.
Logical Reasoning
A. C + D
B. E
C. A + E
D. B + E
Answer: Since A + B = C and C + D = E, then A + B + D = C + D = E.
Logical Reasoning
A. 42
B. 48
C. 49
D. 64
Answer: Perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36, 7²=49.
Logical Reasoning
A. 14
B. 15
C. 16
D. 18
Answer: Each number increases by 3: 3, 6, 9, 12, 15.
Logical Reasoning
A. 24
B. 32
C. 48
D. 64
Answer: Each number is multiplied by 2: 2×2=4, 4×2=8, 8×2=16, 16×2=32.
Logical Reasoning
A. 24
B. 27
C. 30
D. 33
Answer: C(3)+A(1)+T(20)=24.
Logical Reasoning
A. Only I follows
B. Only II follows
C. Both follow
D. Neither follows
Answer: If all boxes are triangles and all triangles are circles, then all boxes are circles, and some circles are boxes.
Logical Reasoning
A. Only I follows
B. Only II follows
C. Both follow
D. Neither follows
Answer: If all men are human and all human are mortal, then all men must be mortal.
Logical Reasoning
A. Only I follows
B. Only II follows
C. Both follow
D. Neither follows
Answer: We cannot definitively conclude any relationship between books and pens.
Logical Reasoning
A. Only I follows
B. Only II follows
C. Both follow
D. Neither follows
Answer: Since some cats are black and all black things are beautiful, some cats must be beautiful.
Logical Reasoning
A. Only I follows
B. Only II follows
C. Both follow
D. Neither follows
Answer: We cannot definitively conclude that some roses are thorny or that all flowers are roses.
Logical Reasoning
A. 25
B. 27
C. 29
D. 31
Answer: These are consecutive prime numbers. The next prime after 23 is 29.