Question
The average cost of three chairs is Rs.10000. The
average cost decrease by 10% when one more chair is included. What is the cost price of the 4th chair?Solution
Total cost of three chairs = 10000 × 3 = Rs. 30000 Average cost of all the four chairs = 10000 × (90/100) = Rs. 9000 Total cost of all the four chairs = 9000 × 4 = Rs. 36000 Cost of the 3rd chair = 36000 - 30000 = Rs. 6000
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Whose experiments supports Abiotic synthesis?
Which of the following pollutants is the major contributor to photochemical smog?
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Which of the following is the richest source of phosphorus?
"Schist" is the example of which type of rock?
Which element is known as the 'King of Chemicals.
_____________ has the maximum attraction force between the molecules.
