RRB NTPC CBT 2 Level 5 June-12-2022 Shift 1 Exam Previous Question Paper with Solutions

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116) The power of the Parliament to amend the Constitution of India is described in:

A) Article 360
B) Article 352
C) Article 368
D) Article 395

View Answer
C) Article 368

117) In a certain code language, each word is given a number code. Accordingly, 1875 means ‘wound the round watch’, 6143 means ‘a cake is round’, and 7321 means ‘watch a round wheel’. Find the code for ‘watch’.

A) 8
B) 1
C) 5
D) 7

View Answer
D) 7

Explanation:We are given:
⇒1. 1875 → wound the round watch
⇒2. 6143 → a cake is round
⇒3. 7321 → watch a round wheel
We are to find the code for “watch”.
—
Step 1: Identify common words and numbers:
* “round” appears in all three sentences:
→ (1875), (6143), and (7321)
→ So, find the common number in all three codes.
Let’s list each set:
* 1875 → {1, 8, 7, 5}
* 6143 → {6, 1, 4, 3}
* 7321 → {7, 3, 2, 1}
The only common number across all three codes = 1
→ So, “round” = 1
—
Step 2: Now find the code for “watch”
* “watch” is in 1875 and 7321
→ So compare the sets:
* 1875 = {1, 8, 7, 5}
* 7321 = {7, 3, 2, 1}
→ Common numbers: 1 and 7
* We already know 1 = “round”
→ So remaining common number 7 = “watch”

118) _________is defined as the output per unit of variable input.

A) Capital products
B) Average product
C) Gross product
D) Net product

View Answer
B) Average product

119) The ratio of the length, width and height of a cuboid is 4:3:5 and the sum of the lengths of all its edges is 144 cm. Find the total surface area of the cuboid.

A) 1620 cm2
B) 1026 cm2
C) 756 cm2
D) 846 cm2

View Answer
D) 846 cm2

Explanation:We are given:
* Ratio of length : width : height = 4 : 3 : 5
* Sum of all edges = 144 cm
* We are to find the total surface area of the cuboid.
—
✅ Step 1: Use ratio to express dimensions
Let the dimensions be:
* Length = 4x
* Width = 3x
* Height = 5x
A cuboid has 12 edges (4 of each dimension), so:
4(4x + 3x + 5x) = 144
4(12x) = 144
⇒ 48x = 144
⇒ x = 3
So:
* Length = 4x = 12 cm
* Width = 3x = 9 cm
* Height = 5x = 15 cm
—
✅ Step 2: Use the formula for total surface area (TSA)
TSA = 2(lw + lh + wh)
= 2(12×9 + 12×15 + 9×15)
= 2(108 + 180 + 135)
= 2(423)
= \boxed{846\text{ cm}^2}
—
✅ Final Answer: 4. 846 cm²
Would you like a visual explanation or diagram for better understanding?

120) The following table presents the expenditure of a company on various heads over five years.

Expenditures of a company(in Lakhs)
Expenditure heads
year salary Transport Taxes Advertising Offers and Promotions
2017 361 93 83 142 52
2018 273 67 65 133 86
2019 645 110 152 108 95
2020 712 108 165 112 48
2021 652 111 132 101 75

The company’s total expenditure in 2017 was approximately what percentage of its total expenditure in 2021?

A) 68%
B) 71%
C) 61%
D) 55%

View Answer
A) 68%

Explanation:Let’s calculate the total expenditures for 2017 and 2021, and then find the required percentage.
—
✅ Total expenditure in 2017:
= 361 + 93 + 83 + 142 + 52 = 731 lakhs
✅ Total expenditure in 2021:
= 652 + 111 + 132 + 101 + 75 = 1071 lakhs
—
✅ Required percentage:
\frac{731}{1071} × 100 \approx 68.25\%

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