Question

if the average of 4 numbers is 60 the first number is one fourth of the last 3 numbers then what is the first numbet ?

Answer 1

Hey.

Here is the answer.

let the first no. be x
so, 60= (x+3×4x)/4
or, 60×4=x+12x=13x
so, x=240/13

Thanks.

Answer 2

Hey mate here's your answer......

60 = (x+3 X 4x )/4
60x4 =x+12+× =13x.
X = 240 /13.

Hope it Helps