+76 Alex is 2 years younger than Bindoy. Four years ago, 1/4 the age of Bindoy was a third of Alex's age. How old is each boy?
+6248 Alex is 2 years younger than Bindoy. Four years ago, 1/4 the age of Bindoy was a third of Alex's age. How old is each boy?
\(a = b-2 \\ \dfrac 1 4 (b-4)=\dfrac 1 3 (a-4)\)
\(\dfrac 1 4(b-4)=\dfrac 1 3 (a-4) = \dfrac 1 3 (b-2 - 4)\\ \dfrac b 4 - 1 = \dfrac b 3 - 2 \\ 1 = \dfrac b {12} \\ b=12 \\ a=10\)
Bindoy is 12 yrs old. Alex is 10 yrs old.
+6248 Alex is 2 years younger than Bindoy. Four years ago, 1/4 the age of Bindoy was a third of Alex's age. How old is each boy?
\(a = b-2 \\ \dfrac 1 4 (b-4)=\dfrac 1 3 (a-4)\)
\(\dfrac 1 4(b-4)=\dfrac 1 3 (a-4) = \dfrac 1 3 (b-2 - 4)\\ \dfrac b 4 - 1 = \dfrac b 3 - 2 \\ 1 = \dfrac b {12} \\ b=12 \\ a=10\)
Bindoy is 12 yrs old. Alex is 10 yrs old.
