A number of light bulbs were purchased to illuminate a gym. However, only of them were needed. The extra 160 light bulbs were returned. 60% percent of their cost, or $96, was reimbursed. How much money was spent on illuminating the gym? (A) 360 (B) 320 (C) 384 (D) 364 (E) 160 OA will follow...

Hi, Please check the question after you post it. A number of light bulbs were purchased to illuminate a gym. However, only of them were needed. The extra 160 light bulbs were returned. 60% percent of their cost, or $96, was reimbursed. How much money was spent on illuminating the gym? Looks like somethign is missing.

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Ozlemg wrote:A number of light bulbs were purchased to illuminate a gym. However, only 2/3 of them were needed. The extra 160 light bulbs were returned. 60% percent of their cost, or $96, was reimbursed. How much money was spent on illuminating the gym? Looks like you blindly copied the question from somewhere and missed the image of the fraction. (1 - 2/3) = 1/3 of the bulb were returned. Hence, total number of bulbs purchased = 160*3 = 480 60% cost of 160 bulbs = $96 100% cost of 480 bulbs = $(96*100*480)/(160*60) = $480 Hence, total money spent = $(480 - 96) = $384 [spoiler] The correct answer is C.[/spoiler]

A number of light bulbs were purchased to illuminate a gym. However, only 2/3 of them were needed. The extra 160 light bulbs were returned. 60% percent of their cost, or $96, was reimbursed. How much money was spent on illuminating the gym? (A) 360 (B) 320 (C) 384 (D) 364 (E) 160 Since 2/3 of the bulbs were needed, the returned bulbs represent 1/3 of the original purchase. Thus, the returned bulbs cost 1/3 of the total paid prior to the reimbursement. We can plug in the answers, which represent the money spent to illuminate the gym. Answer choice C: 384. Since 96 was reimbursed, total spent before reimbursement = 384+96 = 480. Cost of the returned bulbs = (1/3)*480 = 160. Reimbursement = .6*160 = 96. Success! The correct answer is C.