RRB-NTPC 2021 General Awareness

Practice subject-wise previous year questions

Question 301
GK

Each of the digits in the number 8123457 is arranged in ascending order from left to right. The position(s) of how many digits will remain unchanged as compared to that in the original number?

A
Three
B
Two
C
One
D
None
Question 302
GK

BGLY is related to EIOA in a certain way based on the English alphabetical order. In the same way, NOXG is related to QQAI. To which of the given options is WUGM related, following the same logic?

A
ZJOW
B
ZJOI
C
ZWOJ
D
ZWJO
Question 303
GK

What should come in place of the question mark (?) in the given series? 312 296 280 264 ? 232 216

A
242
B
248
C
260
D
240
Question 304
GK

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster 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
DGF
B
ORQ
C
POT
D
FIH
Question 305
GK

Himank starts from Point A and drives 13 km towards West. He then takes a left turn, drives 3 km, turns left and drives 16 km. He then takes a left turn and drives 6 km. He takes a final left turn, drives 3 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° turns only unless specified.)

A
3 km to South
B
4 km to South
C
4 km to North
D
3 km to North
Question 306
GK

If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 5672493, then which of the following digits will be third from the left in the new number thus formed?

A
2
B
8
C
6
D
4
Question 307
GK

If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 29134576, then what will be the difference between the greatest and smallest digit in the number thus formed?

A
6
B
4
C
2
D
8
Question 308
GK

K is the son of I. I is the father of L. L is the mother of O. O is the brother of S. How is K related to O?

A
Mother's brother
B
Wife
C
Father
D
Brother
Question 309
GK

Find the area of a triangle with base 12 cm and height 8 cm.

A
$72\ cm^2$
B
$60\ cm^2$
C
$48\ cm^2$
D
$96\ cm^2$
Question 310
GK

3 years ago, the father's age was 24 years more than twice his son's age. After how many years from now will his age be twice his son's age?

A
19
B
23
C
25
D
21
Question 311
GK

The cost of 12 pens and 7 pencils is ₹285. If the cost of a pen decreases by ₹6 and the cost of a pencil increases by ₹5, then the cost of 11 pens and 3 pencils is ₹118. What is the original cost of 2 pens and 2 pencils?

A
₹68
B
₹66
C
₹73
D
₹70
Question 312
GK

Find the simple interest (in ₹) on ₹1,200 at an interest rate of 4% per month for 9 months.

A
₹56
B
₹432
C
₹36
D
₹72
Question 313
GK

Nitin bought some pencils at the rate of ₹180 a dozen. He sold them for ₹17 each. His profit percentage is __________%. (Round off to two decimal places.)

A
11.33
B
17.33
C
15.33
D
13.33
Question 314
GK

The sum of five numbers is 655. The average of the first two numbers is 80 and the third number is 109. Find the average of the remaining two numbers.

A
190
B
194
C
193
D
189
Question 315
GK

An amount of ₹658 is divided among three persons in the ratio of 18: 12: 2. The difference between the largest and the smallest shares (in ₹) in the distribution is:

A
329
B
426
C
261
D
242
Question 316
GK

The number 444348269 is divisible by which of the following?

A
10
B
19
C
12
D
9
Question 317
GK

The current population of a town is 14,680. It increases by 25% and 70% in two successive years but decreases by 20% in the third year. What is the population of the town at the end of the third year?

A
24,956
B
24,960
C
24,953
D
24,958
Question 318
GK

The average runs scored by a batsman in 23 matches is 42. In the next 10 matches, the batsman scored an average of 15 runs. Find his average runs scored (rounded off to two decimal places) in all the 33 matches.

A
32.82
B
34.82
C
33.82
D
35.82
Question 319
GK

Each of the digits in the number 71642938 is arranged in ascending order from left to right. The position of how many digits will remain unchanged as compared to that in the original number?

A
None
B
Two
C
One
D
Three
Question 320
GK

A, B, C, D, E, F and G are sitting around a circular table facing the centre. B sits third to the right of E. F sits to the immediate left of B. C is the immediate neighbour of A and B. G is not the immediate neighbour of F. How many people sit between D and G when counted from the left of G?

A
Four
B
Two
C
Five
D
Three
Question 321
GK

What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘×’ are interchanged and ‘−’ and ‘÷’ are interchanged?  38 ÷ 7 + 5 × 20 − 4 = ?

A
22
B
27
C
8
D
15
Question 322
GK

In a certain code language, A + B means 'A is the daughter of B', A - B means 'A is the wife of B', A $\times$ B means 'A is the father of B' and A $\div$ B means 'A is the brother of B'. How is A related to S if 'A + E - F $\times$ N  \(\div\)  S'?

A
Father's sister
B
Mother's mother
C
Father's mother
D
Sister
Question 323
GK

If 2 is added to each even digit and 2 is added to each odd digit in the number 7145362, what will be the sum of the last two and first two digits in the new number thus formed?

A
25
B
24
C
26
D
27
Question 324
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 physicists are chemists. No chemists are biologists. Conclusions: I. No biologists are physicists. II. Some biologists are physicists.

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 325
GK

If '+' and '÷' are interchanged, and '-' and '×' are interchanged, then what will come in place of the question mark (?) in the following equation? 21 ÷ 57 – 3 × 8 + 4 = ?

A
56
B
23
C
45
D
34