Question

Rahul alone can do 60% of the same piece of work in

Q: Rahul alone can do 60% of the same piece of work in (z-4) days. Queen and Rahul together can do 75%

Letsassumethetotalworkis360unitsPankajalonecandothesamepieceofworkin45daysEfficiencyofPankaj360458unitsdayTheefficiencyofRahulis125morethantheefficiencyofPankajEfficiencyofRahul100125of81125of81125x81009unitsdayRahulalonecando60ofthesamepieceofworkinz4daysTimetakenbyRahulalonetocompletetheworkalonez460x100z43x5Soz43x5x9360z43x540z438z424z244z28QueenandRahultogethercando75ofthesamepieceofworkin05z4daysTimetakenbyQueenandRahultogethertocompletethewholework05z475x10005z43x4EfficiencyofQueen9x05z43x4360PutthevalueofzintheaboveequationEfficiencyofQueen9x05x2843x4360EfficiencyofQueen9x1443x4360EfficiencyofQueen9x183x4360EfficiencyofQueen9x6x4360EfficiencyofQueen9x24360EfficiencyofQueen915EfficiencyofQueen1596IftheefficiencyofQueenisylessthanthatofPankaj6100yof86100yx81003100yx41003004004y4y4003004y100y25Requiredpercentagezyx1002825x10028x4112

(z-4) days. Queen and Rahul together can do 75% of the same piece of work in (0.5z+4) days. Pankaj alone can do the same piece of work in 45 days. The efficiency of Rahul is 12.5% more than the efficiency of Pankaj. If the efficiency of Queen is ‘y’% less than that of Pankaj, then find out the value of ‘z’ is what percentage of the value of ‘y’.

A 144%

B 136%

C 128%

D 112%

E None of the above

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RBI Grade B

IBPS SO

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Rahul alone can do 60% of the same piece of work in

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