Math, asked by LuciferX7392, 1 year ago

The average of five positive number is 148 the average of the first two and last two numbers are 136 and 148 respectively what is the third number

Answers

Answered by MarvelEdge17
0

Answer:

172

Step-by-step explanation:

Let the numbers be a,b,c,d,e.

(a+b)/2 = 136 or a+b = 272

(d+e)/2 = 148 or d+e = 296

Also (a+b+c+d+e)/5 = 148 or a+b+c+d+e = 740

Replacing values of a+b and d+e we get

272 + c + 296 = 740

c = 740-272-296 = 172

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