Question

Marked price of an item is Rs 400. On purchase of 1 item discount is 6% and on purchase of 4 items discount is 24%. Rachita buys 5 items, what is the effective discount?​

Please explain

Answer 1

Answer:

20.4%

Step-by-step explanation:

Given M.P of an item = Rs. 400

M.P for 5 items = 400*5 = Rs. 2000..[since she bought 5 items]

Discount on 1 item = 6%

S.P of this item = M.P(100-d)/100 = 400*94/100 = 376

Discount = 24 Rs.

Discount on next 4 items = 24%

S.P of 1 item = 400*76/100 = 304 rs.

S.P of 4 items = 4*304 = 1216

Discount on 4 items = 1600 - 1216 = 384

[You can also directly apply the formula M.P*d/100 instead of M.P*(100-d)/100 and hence, find the discounts directly rather than finding S.P using the latter formula]

Total discount (on 5) = 24 + 384 = 408

Total M.P (5 items) = 2000

Effective discount% = Discount/M.P * 100 = 408/2000 * 100 = 20.4%

Hope it helps