Question

Kali mixed together 9 gal. of the Brand Q fruit drink and 6 gal. of Brand B fruit drink which contains 5% fruit juice. Find the percentage of fruit juice in Brand A if the mixture contained 11% fruit juice

Answer 1

answer : 15%

explanation : let percentage of fruit juice in brand A is x.

a/c to question,

9 gallons of brand A fruit drink and 6 gallons of brand B fruit drink( 5% of fruit juice ) are mixed together to form a mixture containing 11% fruit juice.

x % of 9 + 5 % of 6 = 11% of (9 + 6)

or, 9x/100 + 5 × 6/100 = 11 × 15/100

or, 9x + 30 = 165

or, 9x = 135

or, x = 15

hence, percentage of fruit juice in brand A is 15%