Maths olympiad
Exam
Numerical Ability
Averages
If a batsman scored 44 runs in his last match, then his average runs increased by 0.2 runs.If he scored 4 runs in his last match ,then his average runs is decreased by 0.6 runs ,then what is the total match played by the batsman
Read Solution (Total 1)
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- 50
Let matches played before last match=n and average=x.
Then, (nx+44)/(n+1) = x+0.2 => 0.2n+x=43.8 ---(i) and
(nx+4)/(n+1)=x-0.6 => -0.6n+x=4.6 ---(ii)
Solving eqn. (i) & (ii), x=34, n=49
Therefore, total matches played including last match=49+1=50 - 5 years agoHelpfull: Yes(0) No(0)
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