A bucket holds 243.5 ounces (oz) of water when full. The bucket loses 0.3 oz of water
per second.
In how many seconds will the bucket be 40% full?

The bucket will be 40% full in 487 seconds

Step-by-step explanation:

Step 1 :  

Total capacity of the bucket = 243.5 oz

Quantity lost per second = 0.3 oz

We need to determine in how many seconds the bucket will be 40% full

Step 2 :

When the bucket is 40 % full , it means it is 60% empty.

60% of 243.5 = 146.1

Hence we need to determine how long it takes for the bucket to lose 146.1 oz of water.

For 0.3 oz of water it takes 1 sec, hence for 146.1 oz of water it will take

146.1 ÷ 0.3 =  487 seconds   [using direct proportion]

Step 3 :

The bucket will be filled with 40% of water in 487 seconds

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step-by-step explanation: