M4maths Previous Puzzles

01 Mar 2018 Work & Time

Sweet Makers are needed to prepare Ladoos for Holi celebration. Each Sweet Maker can make either 27 large ladoos per hour, or 127 small ladoos per hour. The kitchen is available for 420 minutes and 756 large ladoos and 6223 small ladoos are needed. How many Sweet Makers are required?

OPtion

1) 15
2) 13
3) 16
4) 12
5) 14
6) 10
7) 17
8) 12.33
9) 10.66
10) None of these

Solution

Lets find out person hours required to prepare the required ladoos for the celebration:
Time taken to cook 756 large ladoos by 1 Sweet Maker = 756/27 =28 hours
Time taken to cook 6223 small ladoos by 1 Sweet Maker = 6223/127= 49 hours
Total hours required by 1 Sweet Maker = 28+49 = 77 hours

As we have kitchen available only for 7 hours, so we need to have more Sweet Makers to finish the work in 7 hours

1 Sweet Maker * 77 hours = X Sweet Maker * 7 hours
So X = 77/7 = 11

Correct Option: 10 Best Solution (0)