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Numerical Ability
Averages
A batsman scored 1 runs in his 18th innings and that makes his average 18. Find his average upto
the 17th innings?
Read Solution (Total 6)
-
- Avg = sum of the value/No. of the value
18 = (Sum of the first 17 innings Score +1)/18
(18*18-1)= Sum of the first 17 innings Score
Sum of the first 17 innings Score = 323
Ave upto 17 innings = 323/17=19 - 12 years agoHelpfull: Yes(9) No(1)
19
avg upto 17 innings is 19
- 12 years agoHelpfull: Yes(5) No(1)
- 19
initially avg is 18 i.e X/18=18
so X=324.. he got it after scoring 1 run.. so till 17 innings 323
avg=323/17=19 - 11 years agoHelpfull: Yes(1) No(0)
- Hello guys here we are .. I will explain this in a basic way
First we take first sentence ...so normally he scored some runs up to 17 innings and in 18 innings he scored 18 runs which means
x + 18
--------- = 18
18
so the above equation goes like this...his total average 18(given) and totally 18 innings(given) and x is the total runs in 17 innings + 18 innings runs which is 18.
solving that you get x=306 ( which is , In 17 innings total runs scored by the batsman)
so
306
------- = 18 (that's the answer :) )
17 - 5 years agoHelpfull: Yes(1) No(0)
- (18*18)-1/17=19
- 10 years agoHelpfull: Yes(0) No(0)
- upto 18th avg=(323+1)/18=18
upto 17th avg=(323)17=19
so ans=19 - 1 year agoHelpfull: Yes(0) No(0)
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