Alligation or Mixture

1. Coffee A normally costs 100 taka per pound. It is mixed with coffee B, which normally costs 70 taka per pound, to form a mixture which costs 88 taka per pound. If there are 10 pounds of the mix, how many pounds of coffee A are used in the mix?

1. 4

1

2. 5

2

3. 6

3

4. 7

4

5. None of these

5
Answer