1.The product
of two 2 digit numbers is 2028 and their HCF is 13. What are the numbers ?
A. 26, 78 B. 39, 52 C.
13, 156 D. 36, 68
2.Six bells
commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds
respectively. In 30 minutes, how many times do they toll together ?
A. 4 B.
10 C. 15 D. 16
3.N is the
greatest number which divides 1305, 4665 and 6905 and gives the same remainder
in each case. What is the sum of the digits in N?
A. 4 B.
3 C. 6 D. 5
4.Which
greatest possible length can be used to measure exactly 15 meter 75 cm, 11
meter 25 cm and 7 meter 65 cm
A. 45cm B.
255cm C. 244cm D. 55cm
5.Let N be the
greatest number that will divide 1305, 4665 and 6905, leaving the same
remainder in each case. Then sum of the digits in N is:
A. 4 B.
5 C. 6 D. 8
6.A, B and C
start at the same time in the same direction to run around a circular stadium.
A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all
starting at the same point. After what time will they again at the starting
point ?
A. 36 minutes 22 seconds B. 46 minutes 22 seconds
C. 36 minutes 12 seconds D. 46 minutes 12 seconds
7.An
electronic device makes a beep after every 60 sec. Another device makes a beep
after every 62 sec. They beeped together at 10 a.m. The time when they will
next make a beep together at the earliest, is
A. 10:28 am B. 10:30 am C.
10:31 am D. None of above
8.What is the LCM of 2/3, 5/6 and 4/9 ?
A. 3/10 B. 3/20 C.
10/3 D. 20/3
9.The
smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28
is:
A. 1008 B. 1015 C.
1022 D. 1032
10.What is
the HCF of 9/10,12/15, 18/35 and 21/40 is :
A. 3/5 B.
252/5 C. 1/280 D. 63/700
