1.Set Theory
hard

In a battle $70\%$ of the combatants lost one eye, $80\%$ an ear, $75\%$ an arm, $85\%$ a leg, $x\%$ lost all the four limbs. The minimum value of $x$ is

A

$10$

B

$12$

C

$15$

D

None of these

Solution

(a) Minimum value of $n=100-(30+20+25+15)$

$ = 100 – 90 = 10$.

Standard 11
Mathematics

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