Question

Find the greatest number of four digits which when divided by 5, 10, 12, 15, 18, 25 and 30 leaves the
Temainder 2 in each case.
In an industrial area, three factories blow sirens at an interval of 40 minutes, 1 hour and one-and-a half hour
respectively. Find the time between two simultaneous sounds of three sirens,​

Answer 1

Answer:

5336486385274286496375385385