Question

A box contains 25 tickets numbered 1,2 ...........25. If two tickets are drawn at random then the probability that the

product of their number is even, is -

• A. $\frac { 11 } { 50 }$
• B. $\frac { 13 } { 50 }$
• C. $\frac { 37 } { 50 }$
• D. None of these

Answer 1

Answer: (C)

$\frac { 37 } { 50 }$

Answer 2

P = $\frac { { } ^ { 12 } \mathrm { C } _ { 2 } + { } ^ { 13 } \mathrm { C } _ { 1 } \times { } ^ { 12 } \mathrm { C } _ { 1 } } { { } ^ { 25 } \mathrm { C } _ { 2 } }$ = $\frac { 37 } { 50 }$