Question

of the 4 number whose avarage is 60. The first is 1/4 th of the sum of last three find the 1st number.. ​

Answer 1

Answer:

Let the first number be x

According to the question

Sum of four numbers =x+4x=5x

As first number x is one fourth of the sum of the last three 4x

So,

4

5x

=60

5x=240

x=48

Therefore the first number is 48.

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