Develop speed and accuracy in arithmetic, algebra, geometry, percentages, ratios and other quantitative concepts.
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What is the slope of a line perpendicular to y = 2x + 3?
A sum doubles itself in 8 years at simple interest. What is the rate?
A pipe fills a tank in 6 hours another empties it in 8 hours. Both open: how long to fill?
solve: (20 − 8) ÷ 4 + 5 = ?
Two numbers are in ratio 5:3 and their sum is 40. What is the larger number?
What is the discriminant of x² - 5x + 6 = 0?
If 2 to the power x equals 64 what is x?
solve: 10 − (2 + 3) × 1 = ?
A man walks 4 km North then 3 km East. How far is he from the start?
What is the expansion of (a-b)²?
What is the sum of interior angles of a hexagon?