Develop speed and accuracy in arithmetic, algebra, geometry, percentages, ratios and other quantitative concepts.
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If sin θ = 3/5 what is cos θ for an acute angle?
solve: (4 + 4) × (3 − 1) = ?
Simplify: (a² - b²) divided by (a - b)
Average weight of 18 boys is 48 kg and of 12 girls is 44 kg. Find the average weight of all students.
The price after 20% discount is Rs 400. What was the original price?
How many ways can 4 people be arranged in a line?
solve: (12 ÷ 4) + (5 × 2) = ?
The average of 5 consecutive even numbers is 20. What is the largest number?
What is the value of log base 10 of 1000?
What is 30% of 150 plus 10% of 50?
If f(x) = 2x² + 3x - 5 what is f(2)?
A and B together do a job in 12 days. A alone takes 18 days. How long does B take alone?
solve: 7 + (6 − 2) × 3 = ?
What is the slope of a line perpendicular to y = 2x + 3?
Average weight of 20 boys is 55 kg and of 15 girls is 50 kg. Find the average weight of all students.
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: (10 − 4) × (3 + 1) = ?
Rationalize the denominator: 1 divided by √2