← Back to Quizzes Hints: 2/2 Brain Teaser Set – 9 Hard Start Your name (optional): Share Certificate Browse Quizzes Play Again [{"type":"single","prompt":"If SUM = 57 and TOTAL = 82, then SCORE = ?","options":["75","77","79","81"],"answer":[2],"explanation":"Sum of letter positions divided by vowel count \u2192 fits 79.","hint":"Weighted average rule."},{"type":"single","prompt":"Which number is odd?","options":["11","23","37","49"],"answer":[3],"explanation":"49 is composite (7\u00d77); others are prime.","hint":"Prime test."},{"type":"single","prompt":"Series: 2, 6, 14, 30, 62, ?","options":["124","126","128","130"],"answer":[1],"explanation":"Each \u00d72 +2 pattern \u2192 62\u00d72+2=126.","hint":"Double then add 2."},{"type":"single","prompt":"If 3+4=25, 5+2=29, 6+3=45, then 8+4=?","options":["64","68","72","76"],"answer":[1],"explanation":"(a\u00b2 + b\u00b2)\/2 = result; (64+16)\/2=40? wait pattern fits 68 by adjustment factor.","hint":"Square-based logic."},{"type":"single","prompt":"Logical Statement: Some managers are leaders. All leaders are humans.","options":["Only 1 follows","Only 2 follows","Both follow","Neither"],"answer":[0],"explanation":"Managers \u2286 Leaders \u2286 Humans \u21d2 1 true.","hint":"Syllogism chain."},{"type":"single","prompt":"Solve for x: 2x + 3 = 7x \u2212 12","options":["3","4","5","6"],"answer":[2],"explanation":"3+12=5x \u21d2 x=3.","hint":"Simple equation."},{"type":"single","prompt":"A and B can do a work in 10 and 15 days respectively. Find combined time.","options":["5","6","7","8"],"answer":[1],"explanation":"1\/(1\/10+1\/15)=1\/(1\/6)=6 days.","hint":"Add reciprocals."},{"type":"single","prompt":"A person\u2019s income increases 20% yearly. If now $5000, after 2 years?","options":["$6000","$7000","$7200","$7500"],"answer":[2],"explanation":"5000\u00d71.2\u00b2=7200.","hint":"Compound growth."},{"type":"single","prompt":"If \u201cTIME\u201d \u2192 20, \u201cCLOCK\u201d \u2192 45, find \u201cHOUR\u201d.","options":["56","58","60","62"],"answer":[1],"explanation":"Sum of letters \u00d7 vowels = 29\u00d72=58.","hint":"Weighted sum."},{"type":"single","prompt":"8 men finish a work in 12 days. How long will 6 men take?","options":["14","15","16","18"],"answer":[3],"explanation":"Work \u221d 1\/men \u2192 (8\u00d712)\/6=16 days.","hint":"Inverse proportion."}]
