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$70\%$ of the employees in a multinational corporation have VCD players, $75$ percent have microwave ovens, $80$ percent have ACs and $85$ percent have washing machines. At least what percentage of employees has all four gadgets?

1. $15\%$
2. $5\%$
3. $10\%$
4. Cannot be determined

70% have VCD Players.    30% do not have VCD Players.

75% have microwave ovens.   25% do not have microwave ovens.

80% have ACs.     20% do not have ACs.

85% have washing machines.    15% do not have washing machines.

30 + 25 + 15 + 20 = 90% of employees do not have atleast 1 gadget.

Minimum percentage of employees who has all the four gadgets
= 100 – 90 = 10%

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