Question

Let, a va apter ( 21^{text {st }} ) math ( rightarrow(x) )
before ( 215+[x-2) )
so, ( 20(x-2)+87=21(x )
( 20 x-40+87=21 x )
( x=47 )
avg before ( 21^{text {st } rightarrow 47-2} )
( Rightarrow 45 )

# 213) A batsman score 87 runs in the 21 match of his career f his ang increases by 2 what was his aug before 21 match.

Solution