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Q.

If the cost of 1 litre of cough syrup is Rs. 480.40, find the cost of 500 ml.


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a

  Rs. 200.40

b

  Rs. 220.40

c

  Rs. 260.40

d

  Rs. 240.20 

answer is D.

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Detailed Solution

  Concept: Firstly, calculate the cost of 1 ml of cough syrup by converting litre to ml, and then find the cost of 500 ml cough syrup.  As we know, 1 litre  =  1000 ml
Cost of 1 litre  = Rs. 480.40  (i.e.  cost of 1000 ml)
Cost of 1 ml cough syrup =  480.401000 = Rs. 0.4804
Cost of 500 ml cough syrup     =   500×0.4804
= Rs. 240.20
Hence, the required number is 4.
 
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