A shopkeeper sells two types of books national books and international books He sells national books...........

Quantitative Aptitude ( CCS) Mixture and Alligation

A shopkeeper sells two types of books national books and international books .He sells national books at Rs. 18 / book and incurs at loss of 10% whereas on selling the international books at Rs. 30 / book ,he gains 20 % .Find the ratio of the national and international books such that he can gain a profit of 25% by selling the combined books at 27.5/ book ?

5:6

5:2

4:5

2:3

छोटे Courses बड़े Results

Master Mixture and Alligation

Prepare through Micro-courses

Try Now

Explanation:

Loss at national books = 10% = 1/10
SP -> 9 = 18
1 = 2
CP -> 10 = 20
Gain at international books = 20 % = 1/5
SP -> 6 = 30
1 = 5
CP ->5 = 25
CP = 4 *5.5 = 22
National Books International Books
20 :    25

. 22
5    :    2