1.

In a box containing LED lights, 12% of them are not working and 66 of them are in good condition. If the box cannot be opened for checking before payment, and each LED light costs Rs. 15, calculate the total amount to be paid for the box.1). Rs. 9902). Rs. 10503). Rs. 11254). Rs. 1185

Answer»

Let the total number of LED lights in the box be ‘m’

% of LED lights in good CONDITION = (100 – 12)% = 88%

⇒ 88% of m = 66

⇒ m = (66 × 100)/88 = 75

∴ Total amount to be PAID for box = 75 × 15 = RS. 1125


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