RRB RPF RPSF SI and CONS Model Papers 8 with solutions

(2) The earth has been divided into 360 degrees of imaginary longitudinal lines. Now, these 360 degrees divided by 24-hour day, results in 4 minutes per longitude. Or, 360 degree = 24 hours, so 1 hour = 15 degrees, 1 degree = 4 minutes. So, for a time difference of two hours, the longitudinal distance will be equal to 30o