NTSE Stage 2 SAT 2015 Question Paper

Question : 59 of 100

Marks: +1, -0

Three - digit numbers formed by using digits 0, 1, 2 and 5 (without repetition) are written on different slips with distinct number on each slip, and put in a bowl. One slip is drawn at random from the bowl. The probability that the slip bears a number divisible by 5 is

$5/9$
$4/9$
$2/3$
$1/3$

Validate

Solution:

Three digit

=3×3×2=18

Divisible by

5=(2×2×1)+(3×2)=10

∴Required probability

=10/18=5/9

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