71) A man starts from a point 'X' and walks 3 km southwards, then he turns left and walks 6 km. In which direction is he from the starting point?

72) The H.C.F. of 595 and 252 is

73) The L.C.M. of 26, 56, 104 and 182 is

74) A student was asked to divide a number by 3. But, instead of dividing it, he multiplied it by 3 and got 29.7. What was the correct answer?

75) A man covers half of his journey at 6 km/ hr and the remaining half at 3 km/ hr. His average speed is