Question

The average of four numbers is 98. If three of those numbers are 86, 87, and 91, what is the fourth number?

Answer 1

~Hello There!~

86 + 87 + 91 = 264

98 x 4 = 392

392 - 264 = 128

The fourth number is 128

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Answer 2

Answer:

128

Step-by-step explanation:

86 plus 87 plus 91 =264  

You have to get 98 times 4 which is 392  

Then;

392-264, which is 128, which is the answer (the fourth number)  

So;

86+87+91+128 = 392 divided by 4 (the number of numbers there is) which equals 98!  

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