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RRB-NTPC 2021 General Awareness

Practice subject-wise previous year questions

Question 1901
GK

The product of two consecutive natural numbers is 30. The greater of the two numbers is:

A
12
B
3
C
6
D
24
Question 1902
GK

Aryan has to reach Ahmedabad which is 977 km away in 11 hours. His starting speed for 4 hours was 39 km/hr. For the next 140 km his speed was 35 km/hr. By what speed he must travel now so as to reach Ahmedabad in the decided time of 11 hours?

A
227 km/hr
B
231 km/hr
C
221 km/hr
D
229 km/hr
Question 1903
GK

Find the area of a triangle whose sides are of lengths 5 cm, 12 cm and 13 cm.

A
32.5 cm²
B
78 cm²
C
30 cm²
D
60 cm²
Question 1904
GK

The LCM of the numbers 14.2 and 0.05 is:

A
142
B
1.42
C
0.142
D
14.2
Question 1905
GK

The marked price of a ceiling fan is ₹2,500. During off season, it is sold for ₹1,360. Find the discount percentage.

A
44.50%
B
45%
C
45.60%
D
42%
Question 1906
GK

The LCM of the numbers 10.8 and 0.06 is:

A
108
B
1.08
C
10.8
D
0.108
Question 1907
GK

The average runs scored by a batsman in 23 matches is 44. In the next 10 matches, the batsman scored an average of 14 runs. Find his average runs scored (rounded off to two decimal places) in all the 33 matches.

A
36.91
B
33.91
C
35.91
D
34.91
Question 1908
GK

The sum of all interior angles of a regular polygon is equal to twice the sum of all its exterior angles. The number of sides of the polygon is:

A
6
B
4
C
3
D
8
Question 1909
GK

If the radius of the base of a right circular cylinder is decreased by 19% and its height is increased by 122%, then what is the percentage increase (closest integer) in its volume?

A
33%
B
40%
C
50%
D
46%
Question 1910
GK

Sophie starts from Point A and drives 8 km towards south. She then takes a right turn, drives 6 km, turns left and drives 5 km. She then takes a left turn and drives 6 km. She takes a final right turn, drives 9 km and stops at Point P. How far (shortest distance) and towards which direction should she drive in order to reach Point A again? (All turns are $90^\circ$ turns only unless specified.)

A
18 km towards south
B
22 km towards south
C
18 km towards east
D
22 km towards north
Question 1911
GK

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster pair.)

A
SV-YD
B
BE-HM
C
DG-JO
D
FI-LO
Question 1912
GK

In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the pair in which the numbers are related in the same way as are the numbers of the following pairs. (Note: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g., 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) 96, 12 184, 23

A
164, 20
B
144, 18
C
172, 21
D
130, 16
Question 1913
GK

Seven people A, B, C, D, E, F and G are sitting in a row, facing the north. Only five people sit to the left of B. Only five people sit to the right of A. C sits to the immediate left of F but right of D. E does not sit to the right of D. How many people sit to the right of G?

A
Five
B
Zero
C
Three
D
Four
Question 1914
GK

If 1 is added for each even digit and 1 is subtracted from each odd digit of the number 56218643, how many digits are repeated more than once in the new number thus formed?

A
Two
B
None
C
Three
D
One
Question 1915
GK

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All fans are lights. No fan is a bulb. Conclusions: (I) No light is an bulb. (II) No bulb is a fan.

A
Only conclusion II follows.
B
Neither conclusion I nor II follows.
C
Only conclusion I follows.
D
Both conclusions I and II follow.
Question 1916
GK

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? PHZ 3, SKC 7, VNF 15, YQI 31, BTL 63, ?

A
EWO 127
B
FWO 127
C
EHO 127
D
EWO 128
Question 1917
GK

In the following triads, each group of letters is related to the subsequent one following a certain logic. Select from the given options, the one which follows the same logic. HARD - AHRD - DRAH ITEM - TIEM - METI

A
WENT - EWNT - TENW
B
DUSK - UDSK - KSUD
C
BITE - BTIE - ETIB
D
LONG - OLNG - ONGL
Question 1918
GK

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements. Statements: All pins are bricks. All pins are rulers. Conclusions: (I) Some bricks are rulers. (II) All rulers are pins.

A
Only conclusion (I) follows.
B
Neither conclusion (I) nor (II) follows.
C
Only conclusion (II) follows.
D
Both conclusions (I) and (II) follow.
Question 1919
GK

Yusif starts from Point A and drives 9 km towards North. He then takes a left turn, drives 4 km, turns left and drives 11 km. He then takes a left turn and drives 5 km. He takes a final left turn, drives 2 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are $90^\circ$ turns only unless specified.)

A
1 km to the West
B
1 km to the East
C
2 km to the North
D
2 km to the South
Question 1920
GK

Refer to the following number, symbol series and answer the question. Counting to be done from left to right only. (Left) 2 / \ < > 2 5 $ % + 6 3 / 6 5 6 9 3 @ < & (Right) How many such numbers are there each of which is immediately preceded by another number and also immediately followed by a symbol?

A
Two
B
Four
C
One
D
Three
Question 1921
GK

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? GNU 11, DKR 21, AHO 41, XEL 81, UBI 161, ?

A
RYF 320
B
ROF 321
C
YYF 321
D
RYF 321
Question 1922
GK

What should come in place of the question mark (?) in the given series? 48 69 94 123 156 ?

A
223
B
213
C
193
D
203
Question 1923
GK

Seven people D, E, F, G, H, I and O are sitting around a circular table, facing the centre of the table. Only one person sits between H and O when counted from the left of O. I sits third to the right of D. F sits third to the left of E. I sits to the immediate right of F. G is not an immediate neighbour of F. How many people sit between G and O when counted from the right of G?

A
One
B
Three
C
Two
D
Four
Question 1924
GK

If 1 is added to each even digit and 1 is subtracted from each odd digit of the number 56218643, how many digits are repeated more than once in the new number formed?

A
Two
B
One
C
Three
D
None
Question 1925
GK

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

A
QU-YE
B
MI-QW
C
GK-OU
D
VZ-DJ
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