If in an AP, 3rd term is 18 and 7th term is 30, the sum of its 17 terms is
600
612
624
None of these
The sum of the digitsin the unit place of all the numbers formed with the help of 3, 4, 5, 6 taken all at a time is
432
108
36
18
In a throw of two dice, the probability of getting a sum of 7 or 11 is
None of these
A.
The probability that at least one of the events A and B occurs is 0.7 and they occur simultaneously with probability 0.2. Then, is equal to
0.8
0.6
1.1
1.4