The ratio of three numbers is 3:4:5 and the sum of their squares is 1250. The sum of the numbers is:
Select
A) 20
B) 40
C) 60
D) 80
E) 100
Let the numbers be 3x, 4x and 5x   Then, 9x2+16x2+25x2=1250   50x2=1250   X=5   Sum of numbers= 3x+4x+5x=12x3 +4 +5= 
<gadget id="calculator">3 +4 +5</gadget>
<output>12</output>
12x=60   ANSWER 60
<result>C</result>
The ratio of three numbers is 3:4:5 and the sum of their squares is 1250. The sum of the numbers is: