Develop speed and accuracy in arithmetic, algebra, geometry, percentages, ratios and other quantitative concepts.
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If the radius of a circle is doubled what happens to its area?
solve: 2³ + (7 − 4) × 3 = ?
What is the LCM of 4 and 6?
A sum of Rs. 1170 is divided between A and B in the ratio 7:6. Find the smaller share.
If P(A)=0.4 and P(B)=0.3 and events are mutually exclusive what is P(A or B)?
If 90% of a number is 180, what is the number?
The sum of a geometric series with a=2 r=3 and 4 terms is?
A sum of Rs. 800 is divided between A and B in the ratio 1:3. Find the larger share.
What is 0.25 expressed as a fraction in simplest form?
Find the average of 7, 14, 21, 28, 35.
What is the surface area of a sphere with radius 7 cm using π = 22/7?
In a class 60% passed math 70% passed English and 20% failed both. What % passed both?
A sum of Rs. 1750 is divided between A and B in the ratio 3:4. Find the smaller share.
What is the compound interest on Rs 1000 for 2 years at 10% per annum?
A number increased from 80 to 100. What is the percentage increase?
What is the derivative of x³ with respect to x?
solve: 5² − [(6 + 2) ÷ 2] = ?