For the following questions answer them individually
Find the standard deviation of first 'n' natural numbers?
Simplify $$1035\div[\frac{3}{4}(71+65)-15\frac{3}{4}]$$
Find the square root of$$ \frac{a^{2}}{b^{2}}$$ +$$\frac{b^{2}}{a^{2}}$$+2
Find the mean of the first 10 consecutive odd numbers.
In a certain code, 15789 is written as 'EGKPT' and 2346 is written as 'ALUR'. How is 23549 written in that code?
Which of the following is more environmental friendly?
Substances whose odour changes in acidic or basic media are called?
Find the missing group of alphabets in the following series.BV, ET, HR, KP, (…), QL