Rohan and Mohan can paint a wall in 12 daystogether, Mohan and Sohan c

1.	Rohan and Mohan can paint a wall in 12 daystogether, Mohan and Sohan can paint the samewall in 15 days together and Rohan and Sohamcan paint that wall in 20 days together. In howmany days Rohan alone can paint the wall?OptionsA. 20B. 30C. 40D. 25
Answer» the correct answer is C option A is correct answer 1/12+1/15+1/20=5+4+3/60=12/60ALL DO=12/60×1/2=101/10-1/15=6-4/60=2/60=1/30HENCE 30 is correct ans correct answer is 30 option (b) 30 is the right answer option b. 30 is the right answer

Rohan and Mohan can paint a wall in 12 daystogether, Mohan and Sohan can paint the samewall in 15 days together and Rohan and Sohamcan paint that wall in 20 days together. In howmany days Rohan alone can paint the wall?OptionsA. 20B. 30C. 40D. 25

Answer»

the correct answer is C

option A is correct answer

1/12+1/15+1/20=5+4+3/60=12/60ALL DO=12/60×1/2=101/10-1/15=6-4/60=2/60=1/30HENCE 30 is correct ans

correct answer is 30

option (b) 30 is the right answer

option b. 30 is the right answer