The total of the ages of A, B and C at present is 90 years. Ten years

1.	The total of the ages of A, B and C at present is 90 years. Ten years ago, the ratio of their ages was 1:2:3. What is the age of B at present ?
Answer» 1X+2X+3X+(10×3)=906X=90-306X=60X=10B=2XB=2×10=2020+10=30✔️ Let 10 years ago age of A, B and C are x, 2x and 3x respectively Present age of A, B and C are(x + 10), (2x + 10), (3x + 10) respectively As per given condition(x+10) + (2x+10) + (3x+10) = 906x + 30 = 906x = 60x = 60/6 = 10 Therefore,Present age of B = 2x + 10= 2*10 + 10= 30 years

The total of the ages of A, B and C at present is 90 years. Ten years ago, the ratio of their ages was 1:2:3. What is the age of B at present ?

Answer»

1X+2X+3X+(10×3)=906X=90-306X=60X=10B=2XB=2×10=2020+10=30✔️

Let 10 years ago age of A, B and C are x, 2x and 3x respectively

Present age of A, B and C are(x + 10), (2x + 10), (3x + 10) respectively

As per given condition(x+10) + (2x+10) + (3x+10) = 906x + 30 = 906x = 60x = 60/6 = 10

Therefore,Present age of B = 2x + 10= 2*10 + 10= 30 years