Question

some man do a working 45 days. if 9 more do this work and complete before 5 days. The number of men in started were​

Answer 1

Answer:

Okay…

Lets say X is the men. So

X men can complete a work in 50 days.

And X+10 men can do the same work in 45 days (as stated in question ). work is same in both the cases

X men × 50 days = ( X +10 ) × 45 days …….. [1]

50X = 45X +450

5 X=450

X =90

So original number of men are 90.

You can check the answer by putting the value of X in equation [1]. If in both the sides work comes same then its the right one.

Answer 2

Answer:

The Koyna Dam is one of the largest dams in Maharashtra, India. It is a rubble-concrete dam constructed on Koyna River which rises in Mahabaleshwar