Question
The average cost of 3 chairs is Rs. 9500. The average
cost decrease by 15% when one more chair is included. What is the cost price of the 4th chair?Solution
Total cost of 3 chairs = 9500 × 3 = Rs. 28500 Average cost of all the 4 chairs = 9500 × (85/100) = Rs. 8075 Total cost of all the 4 chairs = 8075 × 4 = Rs. 32300 Cost of the 4th chair = 32300 - 28500 = Rs. 3800
- 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.)...
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.)...
Cities X and Y are 180 km away from each other. A bike leaves from city X towards city Y at 8 am at a speed of 36 km/h. At 10 am, another bike starts fr...
(699.88% of 32) + (80.44% of 400.23) = ? + (11.67)2
- 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.)
10.232 + 19.98% of 539.99 = ? × 7.99
Solve the following expression and calculate the approximate value.
1727.8 + 2196.75 + 3 × 11.8 × 12.9 × 24.75
Train 'P' travels at a speed of 45 km/h and crosses train 'Q' in 15 seconds while moving in opposite directions. Determine the speed of train 'Q' if the...
? = 200.24 + 1077.97 – 14.992 Â
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