SSC CGL – Combined Graduate Level Examination · પ્રશ્ન 64
The time ratio for X:Y to complete a task is 5:3. Y alone takes 15 hours. How long do X and Y take together?
જવાબ બતાવો અને સમજૂતી
જવાબ: (B) 9.375 hrs
સમજૂતી
X = 25 h; together 1/(1/25 + 1/15) = 9.375 h.