Question

There are four numbers in the ratio of 1:2:3:4. the sum of these four numbers is 16, then sum of first and fourth number is :

Answer 1

Let the no. Be x then
The ratios become 1x:2x:3x:4x
Then,
Sum of the ratios is given =16
1x +2x+3x+4x=16
10x=16
X=1.6
Now sum of 1st and 4th no is
X=1.6 and 4x=1.6*4=6.4
Then
1.6+6.4=8
Hence, the sum is 8