Question

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=........
(a) 10
(b) 12
(c) 15
(d) None of these​

Answer 1

Answer:

70% of the combatants lost one eye, 80% an ear, 75% an arm and 85% a leg.

Now,

⇒ The combatants who lost one eye and one ear =(70+80−100)%

=50%

⇒ The combatants who lost one eye, one ear and one erm =(50+75−100)%

=25%

⇒ The combatants who lost one eye, one ear one arm and one leg =(25−85−100)%

=10%

∴ Combatant who lost all the four limbs =10%

∴ x=10%

Step-by-step explanation:

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Answer 2

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70% of the combats lost one eye, 80% an ear, 75% an arm, and 85% a leg.

Now,

The combatants who lost one eye and one ear

= $\tt (70+80-100) \% = \underline{50\%}$

The combatants who lost one eye, one ear and one arm

=$\tt(50+75-100)\%=25\%$

The combatants who lost one eye, one ear, one arm, and one leg

$\tt(25-85-100)\%=10\%$

$\therefore$Combatants who lost all the four limbs=$\tt 10\%$

$\tt \therefore x= 10 (a)$

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