Answer:
52%
Step-by-step explanation:
40% nuts of 5kg = 40% × 5 = 2kg
56% nuts of 15kg = 56% × 15kg = 8.4kg
total of nuts in mixture = 2 + 8.4 = 10.4kg
10.4kg of nuts in 20kg = 10.4/20 = 52%
infinitely many solutions
