Develop speed and accuracy in arithmetic, algebra, geometry, percentages, ratios and other quantitative concepts.
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The average of 5 numbers is 20. A new number 32 is added. Find the new average.
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 shopkeeper buys an item for Rs 200 and sells it for Rs 250. What is the profit percentage?
A and B together do a job in 12 days. A alone takes 18 days. How long does B take alone?
What is the slope of a line perpendicular to y = 2x + 3?
What is the value of (3² + 4²)?
A sum doubles itself in 8 years at simple interest. What is the rate?
solve: (12 ÷ 3 + 2) × (5 − 2) = ?
If x + 5 = 12 what is the value of x?
If a rectangle has length 8m and width 5m, what is its area?
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) = ?
How many prime numbers are between 1 and 50?
What is the sum of first 10 natural numbers?
Rationalize the denominator: 1 divided by √2