Answer:
Per day earning is $1.
Step-by-step explanation:
Initial balance that Usha had = $84
Number of working days = 6 days
Total money after working 6 days = $45 × 2 = $90
Since we know that the initial amount is $84 and the final amount is $90. Thus the amount earned by working 6 days is 90 – 84 = $6.
Now we have to calculate the per day earning. Therefore, just divide the earning with number of days.
Per day earning = $6 / 6 = $1
