For the following questions answer them individually
If the compound interest earned on a certain sum for 2 years is twice the amount of simple interest for 2 years, then the rate of interest per annum is _______ percent
Placing which of the following two digits at the right end of 4530 makes the resultant six digit number divisible by 6,7 and 9?
In a school 70% of the boys like cricket and 50% like football. If x% like both Cricket and Football, then
In a class of 65 students 40 like cricket, 25 like football and 20 like hockey. 10 students like both cricket and football, 8 students like football and hockey and 5 students like all three sports. If all the students like at least one sport, then the number of students who like both cricket and hockey is
If x ∈ (a, b) satisfies the inequality, $$\frac{x-3}{x^{2} + 3x + 2}$$ then the largest possible value of b - a is
If a, b, c are real numbers $$a^{2} + b^{2} + c^{2} = 1$$, then the set of values ab + bc + ca can take is: