Question

. A group of workers can complete
a piece of work in 50 days, when
they are working individually. On
the first day one person works,
on the second day another per-
son joins him, on the third day
one more person joins them and
this process continues till the
work is completed. How many
approximate days are needed to
complete the work?​

Answer 1

Answer:10

Step-by-step explanation:

Let a man complete '1' piece of work in a day.

Then total work = 50 unit

Then by statement 1st days

= one man×1 work/day=1

Then by statement 2nd day

= two man×1 work/day=2

Then by statement 3rd day

=3 man×1 work/day=3

Let the whole work will be completed in N day.

then total work = 1+2+3+.......+N=50

N(N+1)2= 50

N(N+1) = 100

Then N = 10 days (approx)

Hope it helps you!!!!