Question
The average cost of three chairs is Rs.16000. The
average cost decrease by 20% when one more chair is included. What is the cost price of the 4th chair?Solution
Total cost of three chairs = 16000 × 3 = Rs. 48000 Average cost of all the four chairs = 16000 × (80/100) = Rs. 12800 Total cost of all the four chairs = 12800 × 4 = Rs. 51200 Cost of the 4rd chair = 51200 - 48000 = Rs. 3200
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.)...
239.977 ÷ 5.998 + √840.913 × 6.113 = ? + 117.948
{(22.22 2 + 6.06 3 ) ÷ 15.15} × 3.03 = ? – 55.05 × 4.04
2√574 + 19.956% of 1449.978 = ?% of 628.08
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.)...
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.)...
499.99 + 1999 ÷ 39.99 × 50.01 = ?
- 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.)
630.11 ÷ 20.98 × 5.14 – 125.9 = √?Â
111.89 × 4.12 – 504.04 ÷ 2.12 = 170.12 + ?
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