RRB JE 2nd June 2019 Shift-2


For the following questions answer them individually

Question 1

Find the standard deviation of first 'n' natural numbers?

Question 2

An alloy is a/an?

Question 3

Simplify $$1035\div[\frac{3}{4}(71+65)-15\frac{3}{4}]$$

Question 4

The liver oil of fish is rich in?

Question 5

Find the square root of$$ \frac{a^{2}}{b^{2}}$$ +$$\frac{b^{2}}{a^{2}}$$+2

Question 6

Find the mean of the first 10 consecutive odd numbers.

Question 7

In a certain code, 15789 is written as 'EGKPT' and 2346 is written as 'ALUR'. How is 23549 written in that code?

Question 8

Which of the following is more environmental friendly?

Question 9

Substances whose odour changes in acidic or basic media are called?

Question 10

Find the missing group of alphabets in the following series.BV, ET, HR, KP, (…), QL

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