Four numbers are chosen at random (without replacement) from the set
{1, 2, 3, ....., 20}.
Statement-1:
The probability that the chosen numbers when
arranged in some order will form an AP
Is `1/(85)`
.
Statement-2:
If the four chosen numbers from an AP, then the set
of all possible values of common difference is {1, 2, 3, 4, 5}.
(1)
Statement-1 is
true, Statement-2 is true; Statement-2 is not the correct explanation for
Statement-1
(2)
Statement-1 is
true, Statement-2 is false
(3)
Statement-1 is
false, Statement-2 is true
(4)
Statement-1 is
true, Statement-2 is true; Statement-2 is the correct explanation for
Statement-1
A. Statement -1 is true , Statement -2 is true, Statement-2 is a correct explanation for Statement -1.
B. Statement -1 is true, Statement -2 is false
C. Statement -1 is false , Statement -2 is true
D. Statement-1 is true, Statement-2 is true, Statement-2 is not a correct explanation for Staement-1.
