alleryકાર્યો P અને Q 4 અને 6 h લે છે અને એકસાથે ચાલી શકે છે; R બંને પછી 3 h લે છે. ન્યૂનતમ કુલ?
A9 h
B8 h
C7 h
D13 h
Answer & Solution
Correct answer: A. 9 h
P અને Q એકસાથે ચલાવવામાં 6 કલાક લાગે છે, ત્યારબાદ Rના 3 કલાકો, કુલ 9 કલાકો.
Keep practising Problem Solving and Arithmetical Reasoning
Browse all Problem Solving and Arithmetical Reasoning questions for RPF Constable, or explore more General Intelligence and Reasoning topics.
Related questions
Combine the arithmetic rulesApply the constraintsWork backwardsLock code: 3 different digits 0–5; 0 may lead. Report=(digits present,of these in place):1Jobs A(2,5),B(4,1),C(3,3) need X then Y (hours). Each machine does 1 job at a time; no splA–E each play every other team once,no draws; each wins 2. A beat B,B beat C,C beat D. If Of coins A–E,one is 1 g above normal,another 1 g below; others normal. Weights satisfy A+BBuy whole boxes for exactly 72 meals, at least 15 veg. P:6 meals(1 veg),₹70. Q:9 meals(3 v