For the following questions answer them individually
If 20% of a = b, then b% of 20 is equal to:
$$(\cosec A - \sin A)^2 + (\sec A - \cos A)^2 - (\cot A - \tan A)^2$$ is equal to.
$$\frac{0.72 \times 0.72 \times 0.72 - 0.39 \times 0.39 \times 0.39}{0.72 \times 0.72 + 0.72 \times 0.39 + 0.39 \times 0.39}$$ is equal to:
A number is first decreased by 10% and then increased by 10%. The number so obtained is 100 less than the original number. The original number is:
A man could not decide between discount of 30% or two successive discounts of 25% and 5%, both given on a shopping of ₹2,000. What is the difference between both the discounts?
At what rate percent per annum with simple interest will a sum of money double in 12.5 years?
The LCM of two numbers is 168 and their HCF is 12. If the difference between the numbers is 60. what is the sum of the numbers?
If $$x + x^{-1} = 2$$, then the value of $$x^3 + x^{-3}$$ is:
A unique circle can always be drawn through x number of given non-collinear points, then x must be:
The speed of a car increases by 2 km/hr after every one hour. If the distance travelled in the first one hour was 35 km, what was the total distance travelled in 12 hours?
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