1. Which is the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ? (3)
(1) 2520
(2) 1260
(3) 630
(4) 196
2.The product of two numbers is 4107, if the HCF of the numbers is 37, the greatest number is (2)
(1) 185
(2) 111
(3) 107
(4) 101
3.A shopkeeper marks his goods 30% above his cost price but allows a discount of 10% at the time of sale. His gain is (4)
(1) 21%
(2) 20%
(3) 18%
(4) 17%
4.Two trains of equal length, running in opposite directions, pass a pole in 18 s and 12 s. the trains will cross each other in (1)
(1) 14.4 s
(2) 15.5 s
(3) 18.8 s
(4) 20.2 s
5.Two men start together from the same place in the same direction to go round a circular path. If one takes 10 min and the other takes 15 min to make one complete round they will meet after (1)
(1) 30 min
(2) 33 min
(3) 40 min
(4) 45 min
