A shopkeeper has two types of article The CP of 1st article is 20Rs kg and other article is X Rs kg ...........

Quantitative Aptitude ( CCS) Mixture and Alligation

A shopkeeper has two types of article. The CP of 1st article is 20Rs/kg and other article is X Rs/kg. He has quantity of 1st article is 10kg and other article is 20 kg. He sold the mixture of these article at Rs 39/kg with a profit of 30%. Find the value of X?

70Rs/kg

35Rs/kg

60Rs/kg

30Rs/kg

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Explanation:

30% profit = 30/100 = 3/10
CP = 10
SP = 10+3 = 13
13 ===39
So 10 ===10*3 = 30
20…………….x
……….30
10…………….20 [Given]
1 : 2
So (30-20)/(x-30) = 2/1
x = 35