NIMCET 2020 Question Paper with solutions

Question : 10 of 120

Marks: +1, -0

A and B play a game where each is asked to select a number from 1 to 25. If the two numbers match, both win a prize. The probability that they will not win a prize in a single trial is

$1/25$
$24/25$
$2/25$
$3/25$

Validate

Solution:

Total no. of outcomes

=25×25

Favorable outcomes

=^25C_1×1

P(A)=\text "Required probability"=\text "favorable"/\text "total"

={^25C_1'1}/{25' 25}=1/25

P(\ov A)=24/25

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