The H C F of two numbers is 4 and their L C M is 168.If the first number is 12,the other is
504
56
48
336
All the factors of 45 are
1,5,9,15,45
1,3,5,15,45
1,3,5,9,15,45.
1,3,5,9,15
Which of the following is a prime number?
45
41
27
The prime factor of 36 are
2 × 2 × 9
4 × 3 × 3
4 × 9
2 × 2 × 3 × 3
Which of the following is a twin prime sets.
(5,2)
(5,3)
(7,11)
(23,29)
If the last digit is 0,then the number is divisible by
2
5
8
10
Simply 5 [{(81 ÷9) × 12 - 18} - 6]
-276
420
-300
400
Which of the following is a square number.
22
23
24
25
Simply 241 + 18 -(7 × 12 - 61) ÷ 8
256.125
261.875
258.125
260.875
12
71
15
58
