Question
Quantity I: A car travels at a speed of 60 km/hr for the
first 3 hours, and then at 80 km/hr for the next 2 hours. Find the average speed of the car for the entire journey. Quantity II: A truck travels 150 km at 50 km/hr, and then another 180 km at 60 km/hr. Find the average speed of the truck for the entire journey.Solution
Distance = (60 * 3) + (80 * 2) = 180 + 160 = 340 km Total time = 3 + 2 = 5 hours Average speed = 340 / 5 = 68 km/hr Quantity II: Total distance = 150 + 180 = 330 km Total time = (150 / 50) + (180 / 60) = 3 + 3 = 6 hours Average speed = 330 / 6 = 55 km/hr Answer: E (Quantity I > Quantity II)
 (108.999)² - (102.001)²=?
999.99 + 99.99 + 99 = ?
1199.98 ÷ 40.48 × 20.12 = ? × 3.16
?% of (144.31 ÷ 17.97 × 60.011) = 239.98
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.)...
From a point on the ground, the angle of elevation to the top of a tree is 30 degrees. If you walk 20 feet closer to the tree, the angle of elevation be...
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.)...
(16.16 ×  34.98) + 14.15% of 549.99 = ? + 124.34
√1024.21 × √624.89 ÷ 4.98 + 11.99 × 4.01 = ?
- 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.)
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