Question

In a factory, 20 workers start working on a project of packing consignments. They need exactly 5 hours to pack one consignment. Every hour 4 new workers join the existing workforce. It is mandatory to relieve worker after 10 hours. Then the number of consignments that would bepacked in the initial 113 hours is

Answer 1

consignment =c
20 workers=5h=i c
no of worker in hour 1 = 20=1c
no of workers in hour 2 =24=1*24/20c
=6/5c
no of workers in hour 3 =28/20c
7/5c
no of workers in hour 4= 32/20c
8/5c
and soo on
9/5c
10/5c
11/5c
12/5c
13/5c
14/5c

sum=5+6+7+8+9+10+11+12+13+14/5
sum=95/5
sum=19