In the early 7th century, 610 A.D Islam was founded and Prophet Muhammad was accredited for its origin. It is beleived that it was first origined in Mecca and Medina.
A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor.
In a farm, in addition to 48 hens there are 42 sheep and 11 oxen with some shepherds. If the total number of feet be 224 more than the number of heads, find the number of shepherd.