Ashifur September 9, 2023 - 16:10
Problem: A working couple earned a total of TK 43,520. The wife earned Tk. 640 pm: day, the husband earned TK 560 per day. , If the total number of days worked by both was 72, formulate a system of equation and solve the system to find the number of days worked

View all: AGRANI BANK LTD (OFFICER-CACH) WRITTEN QUESTION (MATH) SOLVE | 2018

Correct Answer: 32 days

Explanation:

Here. total number of days they worked = 72 days

Let, the wife worked for x days

so, The husband worked for (72 – x) days

According to the question

640x + (72 -x) x 560 = 43,520

=> 640x+ 40,320 -560x = 43,520

=> 80x = 43,520 – 40,320

so, x = 40

So. the wife worked for 40 days days and the husband worked for (72 -40) = 32 days.

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