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 :
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 :
[A]5
[B]8
[C]10
[D]80
8
Sum of first and fourth number is :
Hence option [B] is the right answer.
![\because \left [ \frac{1}{10}+\frac{4}{10} \right ]\times 16=8](https://s0.wp.com/latex.php?latex=%5Cbecause+%5Cleft+%5B+%5Cfrac%7B1%7D%7B10%7D%2B%5Cfrac%7B4%7D%7B10%7D+%5Cright+%5D%5Ctimes+16%3D8&bg=ffffff&fg=000&s=2&c=20201002)
Kumar sourav
December 11, 2018 at 3:55 amSir I did not understand