Question

51. A shopkeeper sells two books, he sold 1 book at profit and
other book at loss. SP of each of the two books is 600 and
profit percentage on 1 book is equal to loss percentage o
other. If overall loss of shopkeeper is 6.25%, then find
(e) 26
5
difference between cost price of both book.
(h) 480​

Answer 1

Step-by-step explanation:

Let the cp of books are p and q

p(1 – r) = 600

q(1+r) = 600

(p+q) × 0.9375 = 1200

p+q = 1280

1280 = 600/(1–r) + 600/(1+r) = 1200/(1–,r²)

1–r² = 1200/1280 = 0.9375

=> r² = 0.0625

=> r = 0.25

= p = 600/0.75= 800

=> q = 600/1.25 = 480

p – q = 800 – 480 = 320