If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?

40 30 45 60

  • Vaishali
  • 07 सितम्बर
  • 10545 दृश्य
  • 211 उत्तर
Your Answer

Let wrk = lcm of 15 n 20 dat is 60 B efficiency = 60/20=3 A+B efficiency = 60/15=4 A efficiency = 4-3=1 So A can do wrk alone in 60/1=60 days

0
blue अन्य संबंधित चर्चाएं
cocubes test
मॉक परीक्षण अभ्यास के लिए
cocubes test
मॉक टेस्ट ले forward