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?
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
1. Cognitive skills occupy a vital role in an individual’s overall development, as they include some of the brain’s core functions such as t...
