Question
The average cost of three chairs is Rs.10000. The
average cost decrease by 12% 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 × (88/100) = Rs. 8800 Total cost of all the four chairs = 8800 × 4 = Rs. 35200 Cost of the 3rd chair = 35200 - 30000 = Rs. 5200
Cinnabar is an ore of which metal?
Which gas is the chief component of Bio-gas?
Which of the following is used in alcoholic drinks?
Whose experiments supports Abiotic synthesis?
Which of the following pollutants is the major contributor to photochemical smog?
Which of the following fatty acids does NOT form soap?
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.
Relevant for Exams:
