Seven students P, Q, R, S, T, U, V stand in a line. T is 4th from left. P is 2 positions to the left of T. V is 2nd from right. Q is between P and S. Where is R?
A6th position
B5th position
C7th position
D3rd position
Correct Answer:
A. 6th position
Explanation:
T at 4, P at 2, V at 6 (2nd from right in 7). Q between P(2) and S: possibly 3. Remaining: R at 5 or 7. V at 6 means R at 5 or 7. Given Q between P and S, arrangement: P-Q-S-T-?-V-R gives R at 6, or P-Q-S-T-R-V-U gives R at 5. Correcting: R at position 6.
Four couples sit around a square table with one couple on each side. Husband A sits opposite to Husband B. Wife of A sits to the immediate right of Husband B. Where does Wife of B sit?
AOpposite to A
BImmediate right of A
CImmediate left of A
DOpposite to A's wife
Correct Answer:
C. Immediate left of A
Explanation:
A and B opposite (same side for couples). A's wife right of B. B's wife must be left of A (opposite rotation of A's arrangement).
Eight colleagues sit around a circular table. P sits third to the right of Q. M sits second to the left of P. If Q faces South, what direction does M face?
ANorth
BEast
CWest
DSouth
Correct Answer:
A. North
Explanation:
Q faces South. P is third to right (clockwise) of Q = East from Q. M is second to left of P (counterclockwise) = North from P = North direction.
All triangles are shapes. Some shapes are colored. No colored things are invisible. Which conclusion is valid?
AAll triangles are invisible
BAll triangles are colored
CSome triangles may not be invisible
DNo triangles are shapes
Correct Answer:
C. Some triangles may not be invisible
Explanation:
Triangles are shapes. Some shapes are colored, but not all. Since some shapes might not be colored, some triangles might not be colored, thus not covered by 'no colored things are invisible'. Some triangles may not be invisible.
