1, 1, 2, 6, 24, 96, 720
720
96
24
6
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?
4
10
15
16
Three bells chime at an interval of 18, 24 and 32 minutes respectively. At a certain n time they begin to chime together. What length of time will elapse before they chime together again?
2 hours 24 minutes
4 hours 48 minutes
1 hour 36 minutes
5 hours
34 x 232 x 30 x 12 x 1 ÷ 1 =?
2830000
250000
3200000
5600000
The number nearest to 10000 which is exactly divisible by each of 3, 4, 5, 6, 7 and 8 is
9240
10080
9996
100000
None of these
138.009 + 341.981 – 146.305 = 123.6 + ?
120.085
120.85
220.085
8433.733 ÷ 54.102 ÷ 5.55 =?
27
28
25
20
34.95 + 240.016 + 23.98 = ?
298.0946
298.111
298.946
299.09
The sum of five numbers is 290. The average of the first two numbers is 48.5 and the average of last two numbers is 53.5. what is the third number
72
84
108
The unit’s digit in the product (3127)173 is;
1
3
7
9
The H.C.F and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125, then that number is :
77
88
99
110
How many 3-digit numbers do not have an even digit or a zero?
60
80
125
150
3/8 of 168 x 155+?-5499+235
107
174
189
296
Which of the following is a pair of co-primes?
(16, 62)
(18, 25)
(21, 35)
(23, 92)
Let x, y be positive real nos such that x3 + y3 = 4x2 find maximum value of x + y
5
16/3
16/5
none of these
Three numbers are in the ratio 1 : 2 : 3 and their H.C.F is 12. The numbers are:
4, 8, 12
5, 10, 15
10, 20, 30
12, 24, 36
121 144 190 259 ? 466
351
349
374
328
2664÷12÷6=?
43
41
37
33
1, 8, 27, 64, 125, 216,(______)
354
343
392
245
7 3/4 + 5 1/4 + 8 1/4 = ?
20 1/4
21 1/2
21 3/4
20 3/4
The product of two numbers is 120 and the sum of their squares is 289. The sum of the numbers is;
23
169
Find the number of pairs of positive integers (a, b) such that a!+b! = ab
0
For a positive integer n, let pn denote the product of the digits of n, and sn denote the sum of the digits of n. The number of integers between 10 and 1000 for which pn + sn = n is
81
18
Which of the following is equal to 30 x 246?
118 x 13+209 x 42
174 x 10+222 x 19
173 x 12+221 x 24
169 x 16+167 x 50
The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8, is:
504
536
544
548
E= (2 x 5 x 10)/(1600)1/2W = (4 x 5 x 16)/(32 x 50)1/2
E is greater than W
E is equal to W
W is greater than E
No relationship between W and E
What is the remainder let after dividing 1!+2!+3!.....+10! by 7?
14
21
A bag contains Rs 300 in the form of 1 rupee, 50 paise and 25 paise coins in the ration 3 : 2 : 4 The number of 25 paise coins in the bag are
240
300
360
180
1, 4, 9, 16, 23, 25, 36
36
The difference of two numbers is 20% of the number. If the smaller number is 12, the larger one is :