সঠিক উত্তর হচ্ছে: 6%
ব্যাখ্যা: As same price
Let one dozen eggs=100
ten pounds of apples=100
So total amount 200
Eggs price rises 10%=100+10=110
Apples price rises 2%=100+2=102
Rises total amount 212
Just rises amount 12
So cost price will 12*100/200=6%