Question
The average cost of 3 chairs is Rs. 10000. The average
cost decrease by 22% when one more chair is included. What is the cost price of the 4th chair?Solution
Total cost of 3 chairs = 10000 × 3 = Rs. 30000 Average cost of all the 4 chairs = 10000 × (78/100) = Rs. 7800 Total cost of all the 4 chairs = 7800 × 4 = Rs. 31200 Cost of the 4th chair = 31200 - 30000 = Rs. 1200
564.932 + 849.029 – 425.08 = 612.095 + ?
999.99 + 99.99 + 99= ?
A sum of ₹60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to ₹75,264 in 2 ye...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
(124.901) × (11.93) + 219.95 = ? + 114.891 × 13.90
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
