RRB Group-D 22nd Sep 2018-shift -2

A and B can complete a piece of work together in 20 days. They start work together but A had to leave 5 days before the work finally got over. If B finishes the remaining in 18 days, then how long will A take to complete the work separately.

Consider the following statement and decide which of the assumptions are implied from the given statement.
Statement:
The school management has introduced compulsory Yoga and relaxation for all its class XI and XII students.
Assumptions:
I. The management considers that Yoga would give its children a foundation in ancient health science. 

II. The management wants children to feel relaxed and perform better in studies.

A ball is thrown vertically upward with a velocity of 20 m/s. After 3s, the magnitude of its displacement is (take g = 10 $$m/s^2$$)

India celebrates its National Sports Day on:

In Mendeleev"s periodic table, the vertical columns are called:

Which of the following has the lowest electrical resistivity?

Due to atmospheric refraction, sunrise is advanced and sunset is delayed by about

$$\frac{4}{5} + \frac{5}{12} = ?$$

Pipes A, B and C are attached to an empty cistern. While the first two can fill the cistern in 6.6 and 16.5 hours respectively, the third can drain the cistern, when filled, in 9.9 hours. If all the three pipes are opened simultaneously when the cistern is three-fifths full, how many hours will be needed to fill the cistern?

The first state to opt out of the Center's National Health Protection Scheme (NHPS) was: