← Back to Quizzes Hints: 2/2 Logical Reasoning – Set 5 Hard Start Your name (optional): Share Certificate Browse Quizzes Play Again [{"type":"single","prompt":"In a certain code, WATER is written as XBUFS. How is BRAIN written?","options":["CSBJO","CSBJQ","CRBJO","BSBJO"],"answer":[0],"explanation":"Each letter shifted +1 alphabet forward; BRAIN \u2192 C S B J O.","hint":"Observe +1 pattern."},{"type":"single","prompt":"Six people A B C D E F sit around a circular table.","options":["B","C","D","A"],"answer":[1],"explanation":"Place A\u2013D\u2013E\u2013F consecutively; C opposite A \u2192 F opposite C.","hint":"Visualize clockwise positions."},{"type":"single","prompt":"A man walks 3 km north, then 4 km east, then 5 km south.","options":["2 km","3 km","4 km","5 km"],"answer":[2],"explanation":"Net north\u2013south = 2 km south; east = 4 km; \u221a(2\u00b2 + 4\u00b2)=4 .47\u22484 km.","hint":"Use Pythagoras."},{"type":"single","prompt":"If A+B means A is the brother of B, A\u2013B means A is the sister of B, A\u00d7B means A is the father of B,","options":["P is mother of R","P is sister of R","P is aunt of R","P is daughter of R"],"answer":[2],"explanation":"Q\u00d7R \u2192 Q is father of R; P\u2013Q \u2192 P is sister of Q \u2192 P is aunt of R.","hint":"Decode step by step."},{"type":"single","prompt":"Series: 3, 5, 9, 17, 33, ?","options":["49","57","65","69"],"answer":[2],"explanation":"Each term = (previous \u00d7 2) \u2212 1; 33\u00d72\u22121 = 65.","hint":"Double and subtract 1."},{"type":"single","prompt":"Find the odd pair: (4, 16), (5, 25), (6, 36), (8, 72)","options":["(4, 16)","(5, 25)","(6, 36)","(8, 72)"],"answer":[3],"explanation":"For first three second = square of first; 72 \u2260 8\u00b2.","hint":"Square relation."},{"type":"single","prompt":"Statement: Some artists are scientists. All scientists are intelligent.","options":["Only 1 follows","Only 2 follows","Both follow","Neither"],"answer":[0],"explanation":"Artists \u2229 Scientists \u2286 Intelligent \u2192 some artists are intelligent.","hint":"Subset chain."},{"type":"single","prompt":"The average age of four people is 30. If one new person joins and the average becomes 28,","options":["20","18","15","10"],"answer":[2],"explanation":"Total age = 4\u00d730=120; new total = 5\u00d728=140; new person = 20 \u2192 wait, recalc: 140\u2212120=20 (age 20). \u2192 Ans A.","hint":"Multiply average by count."},{"type":"single","prompt":"Number series: 7, 26, 63, 124, ?","options":["215","210","225","230"],"answer":[0],"explanation":"Pattern n\u00b3 \u2212 1 (2\u00b3\u22121=7, 3\u00b3\u22121=26, 4\u00b3\u22121=63, 5\u00b3\u22121=124, 6\u00b3\u22121=215).","hint":"Cube minus 1."},{"type":"single","prompt":"In a row of students, Rohan is 15th from the left and 20th from the right. How many students are in the row?","options":["33","34","35","36"],"answer":[1],"explanation":"Total = L + R \u2212 1 = 15 + 20 \u2212 1 = 34.","hint":"Use L+R\u22121 rule."}]
