Coffee A costs 75 cents per pound. It is mixed with Coffee B, which normally costs 80 cents per pound, to form a mixture that costs 78 cents per pound. If there are 10 pounds of the mix, how many pounds of Coffee A were used in the mix?

Created: 6 years ago | Updated: 2 weeks ago

Updated: 2 weeks ago

4.5

Bangladesh Development Bank Ltd Bangladesh Shilpa Bank Ltd - Officer - 2004 গণিত

ব্যাখ্যা

1.2k

Best Ans:

Let the amount of coffee A and coffee B mixed be A and (10 - A) pounds respectively.

Now, A×75 + (10 - A)×80 = 10×78

or, 75A + 800 - 80A = 780

or, 80A - 75A = 800 - 780

or, 5A = 20

or, A = 4 pounds

6 years ago

0 0

Md Azizur Rahman

Founder of Satt

2 weeks ago

0 0

Md Zahid Hasan

গণিত

Content added By

Content updated By