in an election between two candidates 25% voters did not cast their votes a candidate scored 40% of the votes polled and was defeated by 900 votes find the total number of voters
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let the total number of voters = x
number of votes polled = x - 25% of x
= x - 0.25x = x ( 1 - 0.25 ) = 0.75 x
votes scored by loosing candidates
= 40 % of 0.75 x
= 0.4 × 0.75 = 0.3 x
votes scored by winning candidate
= votes scored by loosing candidate + 900
= 0.3 x + 900
total number of votes polled
0.75 x = 0.3 x + 0.3x + 900
0.75 x = 0.6x + 900
0.75x - 0.6x = 900
x ( 0.75 - 0.6 ) = 900
0.15 x = 900
x = 900 / 0.15 = 6000
therefore
total number of voters=6000
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Your Answer : 6000
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number of votes polled = x - 25% of x
= x - 0.25x = x ( 1 - 0.25 ) = 0.75 x
votes scored by loosing candidates
= 40 % of 0.75 x
= 0.4 × 0.75 = 0.3 x
votes scored by winning candidate
= votes scored by loosing candidate + 900
= 0.3 x + 900
total number of votes polled
0.75 x = 0.3 x + 0.3x + 900
0.75 x = 0.6x + 900
0.75x - 0.6x = 900
x ( 0.75 - 0.6 ) = 900
0.15 x = 900
x = 900 / 0.15 = 6000
therefore
total number of voters=6000
_______________________________
Your Answer : 6000
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