RRB JE 26th June 2019 Shift-3

If $$\frac{x + a}{x + b} = \frac{x + 3a}{x + a + b}$$, find the value of '$$x$$'

In which of the following reactions are two different atoms or groups of atoms (ions) exchanged?

A tent is in the form a cylinder and is surmounted by a cone; radius and height of the cylindrical portion are 10 m and 25 m respectively. For the conical part, radius is 10 m and slant height is 15 m. Calculate the amount of canvas required to build the tent allowing 20% extra for folding, stitching etc.

Read the following information carefully and answer the question given below.

Eight friends—Rahul, Mahesh, Priya, Dinesh, Prasad, Praveen, Ramu and Aruna sit in a row having chairs numbered one to eight in ascending order from left to right. They all are facing north direction.
Priya sits on the chair numbered six. There are exactly two persons between Priya and Rahul. Mahesh and Aruna always sit adjacent to each other. Ramu sits adjacent to neither Rahul nor Priya. Prasad never sits on a chair having an odd number on it. Neither Mahesh nor Aruna sits on chair numbered four. There is only one person between Praveen and Mahesh. Prasad sits on the right (not an immediate right) of Dinesh, and Dinesh never sits adjacent to Praveen.

Which of the following pairs sits at the two extreme ends?

Arjun is seventeenth from the left end of a row of 29 boys and Rahul is seventeenth from the right end in the same row. How many boys are there between them in the row?

The pH of a solution depends on its ______________ concentration.

The sum and difference of the ages of two brothers are in the ratio 5 : 1. If the product of their ages is 96, then what are their ages?

Find the missing group of alphabets in the following series.
PTVX, AEGI, (…), WACE, HLNP

The arrangement of particles is most ordered in the case of-

Which organization's original name was 'Special Police Establishment'?