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Answer:
Let x be the total number of fruits at the fruit stall.
Since ¼ x are oranges, and ⅛ x are apples. By adding them and subtracting them by x, we would know the amount of the remaining fruits.
¼ x + ⅛ x = ⅜ x <-- Adding the apples and oranges
x - ⅜ x = ⅝ x <-- Getting the amount of remaining fruits
Since mangoes are 1/5 of the remaining fruits, and the amount of the remaining fruits are ⅝ x, to get the amount of mangoes, we must multiply 1/5 by ⅝ x. And since we know that there are 72 mangoes, the equation would be like this:
1/5 × ⅝ x = 72 <-- Equation
5/40 x = 72 <-- Solved the equation
1/8 x = 72 <-- Simplify
Now, we know that 72 is ⅛ of x. We must multiply both sides by 8 to get only x
(8) 1/8 x = (8) 72
x = 576
There are a total of 576 fruits in the fruit stand.
Step-by-step explanation: