Staff Selection Commission Sub Inspector Exam
Question : An article is sold for Rs. 680 after two successive discounts of 20% and $x$% on its marked price. The marked price of the article is Rs. 1,000. What is the value of $x$?
Option 1: 15
Option 2: 15.5
Option 3: 12.5
Option 4: 16
Correct Answer: 15
Solution : The article is first discounted by 20% from the marked price of Rs. 1,000. So, the price after the first discount is 1000 – 0.20 × 1000 = Rs. 800 Let the second discount as $x$%. After the second discount, the price of the article
Question : Select the INCORRECTLY spelt word.
Option 1: Abcission
Option 2: Abstruse
Option 3: Incision
Option 4: Abyssal
Correct Answer: Abcission
Solution : The first option is correct.
The incorrectly spelled word is abcission. To correct it, add an "s" after "b" to get abscission. and it means the natural separation of parts of a plant, typically flowers or ripe fruits.
Question : Identify the segment in the sentence which contains a grammatical error.
I remember a friend to me buying several pairs of shoes at a sale.
Option 1: a friend to me
Option 2: I remember
Option 3: buying several pairs
Option 4: of shoes at a sale
Correct Answer: a friend to me
Solution : The correct answer is the first option.
Explanation: In the given sentence, a friend to me is a grammatical error. The correct preposition to use in this context is of instead of to. The phrase should be a friend of mine to
Question : Directions: Select the set in which the numbers are related in the same way as the numbers of the given sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their 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.) (5, 60, 70) (9, 108, 126)
Option 1: (7, 84, 98)
Option 2: (4, 48, 52)
Option 3: (6, 72, 74)
Option 4: (8, 84, 112)
Correct Answer: (7, 84, 98)
Solution : Given: (5, 60, 70); (9, 108, 126)
Here, (5, 60, 70)→5 × 12 = 60; 5 × 14 = 70 (9, 108, 126)→9 × 12 = 108; 9 × 14 = 126
Let's check each option – First option: (7, 84, 98)→7 ×
Question : Directions: In the following question, select the missing number from the given responses.
Option 1: 18
Option 2: 16
Option 3: 12
Option 4: 22
Correct Answer: 22
Solution : Given:
The pattern is running horizontally along the rows. Row 1: (6 ÷ 2) × 11 = 3 × 11 = 33; 33 – 8 = 25 Row 2: (8 ÷ 2) × 6 = 4
Question : In which one of the following places is electricity generated from hydel power?
Option 1: Neyveli
Option 2: Ennore
Option 3: Tuticorin
Option 4: Mettur
Correct Answer: Mettur
Solution : The correct option is Mettur.
It is a hydropower generation project located in Tamil Nadu. It is also known as the Lower Mettur Hydroelectric Power Project. Mettur Dam is one of the largest dams in India, which is located across the Cauvery River and supplies
Question : "Amar Sonar Bangla," the national anthem of Bangladesh, was composed by_______.
Option 1: Rabindranath Tagore
Option 2: Dwijendranath Tagore
Option 3: Debendranath Tagore
Option 4: Abanindranath Tagore
Correct Answer: Rabindranath Tagore
Solution : The correct answer is Rabindranath Tagore.
The national anthem of Bangladesh, "Amar Sonar Bangla," was composed in 1905 by Rabindranath Tagore, a Bengali polymath. The hymn melody was taken from the song "Ami Kothay Pabo Tare," performed on Dadra Tala by the Baul
Question : If $a + b + c = 10, a^2 + b^2 + c^2 = 38$, what is the value of $(a - b)^2 + (b - c)^2 + (c - a)^2?$
Option 2: 12
Option 3: 14
Option 4: 13
Correct Answer: 14
Solution : Given: $a + b + c = 10, a^2 + b^2 + c^2 = 38$ So, $(a+b+c)^2=10^2$ ⇒ $a^2+b^2+c^2+2(ab+bc+ca)=100$ ⇒ $38+2(ab+bc+ca)=100$ ⇒ $2(ab+bc+ca)=62$ Now, $(a - b)^2 + (b - c)^2 + (c - a)^2$ = $2(a^2+b^2+c^2)-2(ab+bc+ca)$ = $(2 × 38) - 62$ = $76
Question : Directions: Find out the alternative figure which contains the given figure.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Because there is no restriction on the rotation of the figure, we will check all the possible orientations of the question figure in which of the given option figures it can fit itself. By comparison of all option figures, the question figure is embedded only in
Question : Directions: In the following question a series is given, with one or more number(s) / alphabet missing. Choose the correct alternative from the given options. 7, 10, 19, 22, 31, ?
Option 1: 32
Option 2: 34
Option 3: 36
Option 4: 44
Correct Answer: 34
Solution : Given: 7, 10, 19, 22, 31, ?
Add 3 and 9 alternatively to get the next term – 7 + 3 = 10; 10 + 9 = 19; 19 + 3 = 22; 22 + 9 = 31 Similarly, 31 + 3 = 34
So,
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