Staff Selection Commission Sub Inspector Exam
Question : What is the Compound Interest (in Rs.) on Rs. 12500 at the rate of 12% per annum compounded yearly for 2 years?
Option 1: Rs. 3000
Option 2: Rs. 2980
Option 3: Rs. 3050
Option 4: Rs. 3180
Correct Answer: Rs. 3180
Solution : Principal, P = Rs. 12500 Time = 2 years Rate = 12% Compound Interest = P[$(1+\frac{r}{100})^n-1$], where P is principal, $r$ is rate of interest compounded annually for $n$ years. = 12500[$(1+\frac{12}{100})^2-1$] = 12500[$(1.12)^2-1$] = 12500[1.2544 – 1] = 12500 × 0.2544 = Rs.
Question : Directions: A series of figures are given which can be grouped into classes. Select the group into which the figures can be classified from the responses.
Option 1: 146, 35, 278
Option 2: 258, 138, 46
Option 3: 37, 145, 258
Option 4: 258, 16, 47
Correct Answer: 146, 35, 278
Solution : Figures 1, 4, and 6 belong to the same group as they are the source of light. Figures 2, 7, and 8 belong to the same group as they all are stationery items. Figures 3 and 5 belong to the same group as
Question : Directions: Which two signs should be interchanged to make the given equation correct? 729 × 9 – (56 – 6) × 5 ÷ 2 + 152 × 19 = 69
Option 1: × and +
Option 2: × and ÷
Option 3: ÷ and –
Option 4: + and –
Correct Answer: × and ÷
Solution : Given: 729 × 9 – (56 – 6) × 5 ÷ 2 + 152 × 19 = 69
Replace the given symbols according to the options one by one with the original symbols in the given equation. First option: × and + =
Question : Study the graph and answer the question. The exports of type A cars in 2016 are what percentage less than the total exports of type B cars in 2014 and 2015?
Option 1: $26 \frac{2}{3}$
Option 2: $32$
Option 3: $45$
Option 4: $43 \frac{1}{3}$
Correct Answer: $43 \frac{1}{3}$
Solution : The exports of type A cars in 2016 = 340 Total exports of type B cars in 2014 and 2015 = 280 + 320 = 600 Required percentage = $\frac{600-340}{600}×100$ = $\frac{260}{600}×100$ = $43\frac{1}{3}\%$ Hence, the correct answer is $43\frac{1}{3}$.
Question : Select the most appropriate meaning of the underlined idiom. He is in high spirits today.
Option 1: Annoying
Option 2: Disturbed
Option 3: Drunk
Option 4: Cheerful
Correct Answer: Cheerful
Solution : The fourth option is correct.
The idiom in high spirits is used to describe someone who is cheerful, happy, or in a good mood. It indicates a positive and uplifted emotional state.
The meanings of the other options are as follows:
Question :
Directions: From among the given alternatives select the one in which the set of numbers is most like the set of numbers in the question. (2, 10, 28)
Option 1: (4, 20, 56)
Option 2: (7, 42, 49)
Option 3: (12, 24, 48)
Option 4: (2, 27, 81)
Correct Answer: (4, 20, 56)
Solution : Given: (2, 10, 28)
(2, 10, 28)→2 × 5 = 10; 2 × 14 = 28 Let's check the option – First option: (4, 20, 56)→4 × 5 = 20; 4 × 14 = 56 Second option: (7, 42, 49)→7 × 5 =
Question : Directions: In the following question, select the related number from the given alternatives. 11 : 123 :: 12 : ?
Option 1: 144
Option 2: 146
Option 3: 148
Option 4: 150
Correct Answer: 146
Solution : Given: 11 : 123 :: 12 : ?
112 = 121 and 121 + 2 = 123 Similarly, 122 = 144 and 144 + 2 = 146
Hence, the second option is correct.
Question : The average of 19 numbers is 22.8. The average of the first ten numbers is 18.4 and that of the last ten numbers is 28.6. If the $10^{\text {th}}$ number is excluded from the given numbers, then what is the average of the remaining numbers? (Your answer should be nearest to an integer.)
Option 1: 21
Option 2: 23
Option 3: 22
Option 4: 20
Correct Answer: 22
Solution : An average of 19 numbers = 22.8 The sum of the 19 numbers = 22.8 × 19 = 433.2 Average of first 10 numbers = 18.4 Sum of first 10 numbers = 18.4 × 10 = 184 Average of last 10 numbers = 28.6 Sum
Question : Which among the following regarding GST is correct?
Option 1: GST network was formed under the Companies Act
Option 2: The 100th Amendment introduced GST in the country.
Option 3: The centre holds a 100 per cent stake in the GST network.
Option 4: GST Council is a statutory body
Correct Answer: GST network was formed under the Companies Act
Solution : The correct answer is GST network was formed under the Companies Act.
The GST network was formed under the Companies Act, and it was formed to abolish all the indirect taxes levied in India. GST (Goods and Service
Question : After giving, 20% discount on an article, there is a profit of 20%. What will be the profit percent when no discount is given?
Option 1: 40%
Option 2: 44%
Option 3: 54%
Option 4: 50%
Correct Answer: 50%
Solution : Given: Discount = 20%, Profit = 20% Let's assume the cost price of the article is Rs. 100. Profit = 20% ⇒ Selling price = (100 + 20) = Rs. 120 Discount given on marked price = 20% ⇒ Selling price = 80% of marked
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