Coffee A normally costs 100 taka per pound, It Is mixed with coffee 8, which normally costs 70 taka per pound, to from a mixture which cost 80 taka per pound. if there are 12 pounds of the mix, how many pounds of coffee A are used in the mix? - CAREER CARE

Ashifur September 9, 2023 - 20:21

Problem: Coffee A normally costs 100 taka per pound, It Is mixed with coffee 8, which normally costs 70 taka per pound, to from a mixture which cost 80 taka per pound. if there are 12 pounds of the mix, how many pounds of coffee A are used in the mix?

View all: DHAKA BANK LTD (TACA) | BUSINESS (DU) WRITTEN QUESTION (MATH) SOLVE | 2018

Correct Answer: The amount of coffee A is 4 pounds.

Explanation:

Let, the amount of coffee A is x pound

So the amount of coffee B = 12 —x pound

Cost of A = x $\times$ 100 = 100 x Tk.

Cost ot‘B =(12—x) x 70 =(12-x) 70 Tk

Cost of mixture = 12 x 80 = 960 TK

100x+(12-x)70 = 960

=> 100x + 840 – 70= 960

=> 30x = 960 – 840 = 120

x = $\frac{120}{30}$ = 4

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