সব প্রশ্নে ফিরে যান
Math
A is three as old as B. C was twice -as old as A four years ago. In four years time, A will be 31. What are the present ages of B and C?
A) 45, 10
B) 9,50
সঠিক উত্তর
C) 10,50
D) 50,15