RRB NTPC (CBT II) Full Mock Test - 2 - RRB NTPC/ASM/CA/TA MCQ

∠ADC = 180 – 120 = 60°
∴ ∠ABC = ∠ADC = 60° (Angles subtended by chord on the same segment are equal)

Principal, teacher and students are living things, but school is an institution.
Hence, school is odd one out.

Circumference of circular shape = π × diameter
= 22/7 × 112 = 352 cm
= length of wire
Therefore, Perimeter of rectangle = 2 (length + breadth)
=> 2 (l + b) = 352
=> l + b = 352 / 2 = 176
Since, sides are in the ratio 9 : 7.
Suppose bigger side = 9x cm and smaller side = 7x cm
Since l + b = 176
9x + 7x = 176
x = 176/16
So, smaller side of rectangle = 7x = 7 x (176/16) = (7/16) x 176 = 77 cm

Let the required sum be P.
r = 4% and time period = 8 yr
Interest = P – 340

⇒ 100P - 34,000 = P x 32
⇒ 68P = Rs. 34,000
∴ P = Rs. 34000/68 = Rs. 500

Suppose B alone can complete the work in x days.

Hence, B alone can complete the work in 48 days.

RI is true because ill health lowers employee productivity. Calling in ill leads to increased absenteeism and an ailing employee, even when working, cannot contribute as much as a healthy employee. Employee productivity is directly related to economic growth.
RII is also true. Since money (either patient's or insurance company's) expended on treatment is non-productive expenditure i.e. it is spent on individual or social welfare, which otherwise could have been put to better use by the consumer in creating commercial or tradable goods and services, ill health drains resources of a household, and hence, an economy. An ailing population cannot ensure economic growth.

Tens digit = x and units digit = y
Number = 10x + y
x + y = 15 …(i)
And (10x + y) + 9 = 10y + x
9(y - x) = 9
y – x = 1 …(ii)
After solving equations (i) and (ii), we get

Hence, required number
= 10 7 + 8 = 78

Letter B is the second letter in the English alphabetical order.
Cube of 2 = 2 × 2 × 2
= 8
In the similar way, C is the third letter in the English alphabetical order.
Therefore, cube of 3 = 3 × 3 × 3
= 27

Apart from an important means of transport, the Indian Railways has been a great integrating force for more than 150 years.
The Indian Railways' operations are currently divided into 18 zones, which are further sub-divided into divisions, each having a divisional headquarter. There are a total of 73 divisions at present.
The 18 zones are: Central Railway, Eastern Railway, East Central Railway, East Coast Railway, Northern Railway, North Central Railway, North Eastern Railway, North Frontier Railway, North Western Railway, Southern Railway, South Central Railway, South Eastern Railway, South East Central Railway, South Western Railway, Western Railway, West Central Railway, Kokata Metro Railway is the Zone in place of Konkan Railway and South Coast Zone- Visakhapatnam.
Indian Railways currently has four different gauges: the 1,676 mm (5 ft 6 in) broad gauge, the 1,000 mm (3 ft 3 3⁄8 in) metre gauge, and two narrow gauges 2 ft 6 in (762 mm) and 2 ft (610 mm).

Give expression: 0.2 x 0.003 x 0.004 0.005
Here, 2 x 3 x 4 x 5 = 120
Number of decimal places in the expression = 10
Required product = 0.0000000120 = 0.000000012

Europa orbits Jupiter. Similarly, Moon orbits Earth.

Let the present age of X be x and that of Y be y.
Using statement I, we get
x = 3y
Using statement III, we get

x + 5 = 2.5y + 12.5
Using I, we get
3y + 5 = 2.5y + 12.5
3y - 2.5y = 12.5 - 5
0.5y = 7.5
y = 7.5/0.5
y = 15 years
Thus, statements I and III are sufficient.

Since there are 12 intervals in a clock;
Each interval = 360/12 = 30°
Number of intervals between 2 and 12 = 10
So, measure of the reflex angle made = 10 x 30° = 300°