Develop speed and accuracy in arithmetic, algebra, geometry, percentages, ratios and other quantitative concepts.
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A population grew by 20% then decreased by 10%. If the original was 1000, what is the final population?
What is the value of (2+3i)(2-3i)?
solve: [(6 + 4) × 2] − 3² = ?
A bag has 5 red and 3 blue balls. What is the probability of drawing 2 red balls?
What is tan(A+B) equal to?
solve: 3 × [(8 − 2) ÷ 3] + 4 = ?
Solve: x² + 4x + 4 = 0 and identify the nature of roots
What does a radian measure?
solve: 2³ + (7 − 4) × 3 = ?
The sum of a geometric series with a=2 r=3 and 4 terms is?
In a class 60% passed math 70% passed English and 20% failed both. What % passed both?
What is the value of log base 2 of 32 plus log base 2 of 4?
What is the sum of squares formula: a² + b² equals?
What is the number of diagonals in a polygon with n sides?
What is the inverse of the 2x2 matrix with rows [1 2] and [3 4]?
solve: (12 ÷ 3 + 2) × (5 − 2) = ?
Differentiate f(x) = sin(x) + cos(x) with respect to x
How many prime numbers are between 1 and 50?
A sum of Rs. 2000 is divided between A and B in the ratio 3:7. Find A's share.
A mixture of 40 liters has milk:water ratio 3:1. How much water to add for ratio 3:2?