అర్థమేటిక్ & రీజనింగ్ గ్రూప్
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14 3
42
21 2
B's 3 days work =3*2=6
Remaining 42-6=36
Remaining done by A+B=36/5=7⅕
3+7⅕=10⅕
A 90 seconds lo race comple chesthey b 100 seconds lo complete chesthadhi,
450 meters b complaint chesaka injure ayidhi remaining 550 half speed tho velthadu 450/10+550/5=155seconds , a bete by b=155-90=65
