1. Two jars of capacity 50 l and 80 l are filled with oil. What must be the capacity of a mug that can completely measure the oil of the two jars? (a)
(a) 10 l
(b) 50 l
(c) 80 l
(d) 40 l
2. Find the largest number which divides 34, 90, 104 leaving the same remainder in each case? (a)
(a) 14
(b) 16
(c) 28
(d) 42
3. The smallest multiple of 7 which when divided by 6, 9, 15 and 18 respectively, leaves 4 as the remainder in each case? (a)
(a) 364
(b) 360
(c) 356
(d) none of these
4. The length of a circular path is 20 kms. Three runners start running from a point in the same direction with speed of 4 km/h, 5 km/h and 8 km/h respectively. After how many hours will they be together at the starting point again? (a)
(a) 20
(b) 60
(c) 15
(d) None of these
5. Two numbers, both greater than 29, have HCF 29 and LCM 4147. Find the sum of the numbers? (a)
(a) 696
(b) 144
(c) 169
(d) 225