RRB NTPC 22 April 2016 - Shift 2

In India, most villages suffer due to one of the following and not the others:

Given $$w$$ = -2, $$x$$ = 3, $$y$$ = 0 & $$z$$ = $$-\frac{1}{2}$$. Then find the value $$2x(w - z)$$.

Which of the following organizations were NOT formed outside India to help in the struggle for Indian independence?

Two numbers are in ratio 4:9 and their HCF is 11. Their LCM is:

Ashok Pillar of Delhi has baffled scientists as it weathers all vagaries of weather and yet does not rust or corrode. Which is it made of

Interchanging which two signs will make the following equation correct? $$15 + 3 \times 9 - 4 \div 16$$ = 57

Which unit is used to measure Noise?

An assertion and a reason are given below.
Assertion: India is a Sovereign country.
Reason: Its parliament is placed in Delhi.
Choose the answer.

Below are given statements followed by some conclusions. You have to take the given statements to be true even if they seem to be at variance with the commonly known facts and then decide which of the given conclusions logically follow(s) from the given statements
Statement:
Domestic demand has been increasing faster than the production of indigenous crude oil.
Conclusions:
I. Crude oil must be imported.
II. Domestic demand must be reduced.

A jug has two holes. The Ist hole alone makes the jug empty in 15 minutes and $$2^{nd}$$ hole alone makes the jug empty in 20 minutes. If water leaks out at a constant rate, how long in minutes does it lake if both the holes together empty the jug?