MDCAT Preparation MCQs

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Showing 1,525 MCQs in MDCAT
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.
Biology
A. ITSH
B. IVUJ
C. KVLK
D. HTSG
Answer: Each letter shifted by plus 1 forward. Reversing gives ITSH.
Biology
A. LFZPCSBF
B. LFZQCBSE
C. LFZQBSE
D. LGZPCSBF
Answer: Each letter shifted by plus 1 gives LFZPCSBF.
Biology
A. 125
B. 127
C. 128
D. 126
Answer: Each term is multiplied by 2 then plus 1. So 63 times 2 plus 1 equals 127.
Biology
A. 14
B. 11
C. 17
D. 7
Answer: All except 14 are prime numbers. 14 equals 2 times 7.
Biology
A. Student
B. School
C. Book
D. Knowledge
Answer: A doctor works in a hospital, a teacher works in a school.
Biology
A. No cat is an animal
B. Some cats are animals
C. No dog is a cat
D. All animals are dogs
Answer: Since no cat is a dog, it follows that no dog is a cat.
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.
Biology
A. Daughter
B. Granddaughter
C. Sister
D. Niece
Answer: D is C\'s father and C is A\'s mother, so A is the granddaughter of D.
Biology
A. All roses are red
B. Some roses are red
C. Some flowers that are red may be roses
D. No rose is red
Answer: Some flowers are red and all roses are flowers, so some roses being red is possible but not definite.
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.
Biology
A. Father
B. Uncle
C. Brother
D. Grandfather
Answer: P is the brother of Q, and R is Q\'s daughter, so P is the uncle of R.
Biology
A. North-East
B. North-West
C. South-East
D. North
Answer: Walking North then turning right means East for 3 km, placing him North-East of start.
Biology
A. 40
B. 42
C. 36
D. 44
Answer: The differences are 4, 6, 8, 10, 12. Next term is 30 plus 12 equals 42.
Biology
A. Apple
B. Mango
C. Potato
D. Banana
Answer: Apple, Mango, and Banana are fruits. Potato is a vegetable.
Biology
A. Cut
B. Sharpen
C. Wood
D. Edge
Answer: A pen is used to write, a knife is used to cut.
Biology
A. P is aunt of R
B. P is uncle of R
C. P is brother of R
D. P is sister of R
Answer: P is brother of Q and Q is sister of R, so P is uncle of R.
Logical Reasoning
A. 25
B. 27
C. 29
D. 31
Answer: These are consecutive prime numbers. The next prime after 23 is 29.
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.
Biology
A. 10 km
B. 15 km
C. 5 km
D. 25 km
Answer: The East and West movements cancel, leaving him 5 km from start.