In 1993, hydroelectric power production hit an all time high of 381 billion kilowatt-hours. this is 1 billion kilowatt-hours more than 4 times the 1950 production level. find the amount of hydroelectric power produced in 1950.

The amount of hydroelectric power produced in 1950 is 95 billion kilowatt-hours.

Step-by-step explanation:

Given:

In 1993, hydroelectric power production hit an all time high of 381 billion kilowatt-hours.

This is 1 billion kilowatt-hours more than 4 times the 1950 production level.

Now, to find the amount of hydroelectric power produced in 1950.

Let the 1950 production level be .

So, by putting equation we solve it.

According to question:

Subtracting both sides by 1 billion we get:

⇒

Dividing both sides by 4 we get:

⇒

Therefore, the amount of hydroelectric power produced in 1950 is 95 billion kilowatt-hours.

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