Apple costs L rupees per kilogram for first 30kgs and Q rupees per kilogram for each additional kilogram. If the price of 33 kilograms is 168 and for 36kgs of Apples is 186 then the cost of first 20 kgs of Apples is Answers:  A) 3.69  B) 3.66  C) 3.6  D) 100  E) 3.61
Ans: By framing equations we get   30L+3Q=168   30L+6Q=186   Eliminate Q by multiplying the first equation by 2 and subtracting second equation from the first   30 L = 150 =&gt; L = 5   Then we get L = 5   Cost of 20 kgs of apples = 20 x 5 =100   Answer:100
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Apple costs L rupees per kilogram for first 30kgs and Q rupees per kilogram for each additional kilogram. If the price of 33 kilograms is 168 and for 36kgs of Apples is 186 then the cost of first 20 kgs of Apples is