A number of pencils were shared out among Bisi, Sola and Tunde in the ratio of 2 : 3 : 5 respectively. If Bisi got 5, how many were share out?

A.
15 
B.
25 
C.
30 
D.
50
Correct Answer: Option B
Explanation
Let x r3epresent total number of pencils shared
B : S : T = 2 + 3 + 5 = 10
2 : 3 : 5
= (frac{2}{10}) x y
= 5
2y =5
2y = 50
∴ y = (frac{50}{2})
= 25