Question

20% reduction in the unit cost of an article for enable one to buy 25 items only for rs 1000

Answer 1

if correct mark as brainliest

Answer 2

Answer:

10

Step-by-step explanation:

   Let the Cost Price of 1- article be= C

   So Number of articles bought for Rs 1000= 1000/C

   When the Cost Price of the article is reduced by 20%, then 25- more articles are bought.

   So 1000/0.8C = 1000/C +25

   So 1250= 1000+ 25C

   So 25C= (1250–1000)= 250

   So Cost Price of 1- article C=Rs. 250/25= Rs 10

   ××××××××××××××××××××××××.

   Another Simple Method :

   For the reduced 20% Cost Price 25- more articles are bought.

   So the reduced Price of the article= {1000 x 20%}÷ 25

   =200÷25 = Rs.8

   So Cost Price of the article before price reduction = Rs.8/(1–0.2)

   = 8/0.8= Rs. 10