RRB Group-D 17th Dec 2018-shift -1

A parking area has two gates, one on the eastern side which is the entry gate and another in the western corner which is the Exit gate. If a car enters the parking area through the entrance gate following a straight path and makes a 90° turn to the right and gets place to park which direction does the car's bonnet face?

Choose one of the following options which is equal to:
$$\frac{1 + \cos \theta}{\sin \theta}$$

Electronegativity ..... from left to right in a row in the periodic table and electro positivity ...... from left to right in a row in the periodic table

Inclusive of an 18% peak-time surcharge a taxi fare came to ₹ 531. What would the payable amount have been without the surcharge?

Find the next term in the following series.
$$A1E5, F6J10, ..........$$

Ritesh drove at a speed of 60 km/h for 8 hours. For how many hours should he now drive at a speed of 80 km/h for the overall average speed to become 72 km/h?

A sum of money, invested at 7.5% simple interest p.a. became ₹ 689 on maturity after 4 years.What was the original sum invested?

How many lines are used to create the below figure?

Consider the following question and decide which of the statements is sufficient to answer the question.
Question:
Find the value of $$m$$, slope of a line.
Statements:
1) $$y = mx + 2$$ 
2) Line passes through (2, 1)

......... cells are embedded in a hard matrix that is composed of calcium and phosphorus.