Question
In a Mall parking, there are some two wheelers and rest
are four wheelers. If wheels are counted, there are total 120 wheels but according to the charge of parking, there are only 45 vehicles. If no vehicle has a Stepney, then the number of two wheelers is.Solution
Let if all the vehicles are two wheeler then number of wheels = 2 × 45 = 90 And if all the vehicles are four wheeler then number of wheels = 4 × 45 = 180 Using allegation method, 
Number of two wheeler = 45 × 2/3 = 30
(408 × 680)÷(20% of 680) = (250 × 260)÷ 10 + ? – 4500
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