Staff Selection Commission Combined Graduate Level Exam
Question : If $(x–4)(x^2+4x+16)=x^3–p$, then $p$ is equal to:
Option 1: 27
Option 2: 8
Option 3: 64
Option 4: 0
Correct Answer: 64
Solution : Given: $(x–4)(x^2+4x+16)=x^3–p$ Formula: We know that $a^3–b^3=(a–b)(a^2+ab+b^2)$ Solution: $x^3–p=(x–4)(x^2+4x+16)$ ⇒ $x^3−p=(x^3−4^3)$ ⇒ $p = 4^3$ So, $p = 64$. Hence, the correct answer is 64.
Question : If $(a+b+c)=20$ and $a^2+b^2+c^2=152$, find the value of $a^3+b^3+c^3-3 abc$.
Option 1: 560
Option 2: 640
Option 3: 480
Option 4: 720
Correct Answer: 560
Solution : Given: $(a+b+c)=20$ and $a^2+b^2+c^2=152$ We know the identity, $(a+b+c)^2 = a^2 + b^2 + c^2 + 2ab + 2bc + 2ca$ $(a+b+c)^2 = a^2 + b^2 + c^2 + 2(ab + bc + ca)$ ⇒ $20^2=152+2(ab + bc + ca)$ ⇒ $ab + bc +
Question : Which organ is the custodian of the National Purse ?
Option 1: Executive
Option 2: Judiciary
Option 3: Legislature
Option 4: Civil Servants
Correct Answer: Legislature
Solution : Correct Answer is legislature
It is regarded as the custodian because it is frequently the sole arbiter of federal financial affairs. It holds the nation's purse and is in charge of the finances. The legislature must give its consent before the executive can borrow or
Question : The sum of three consecutive even numbers is 28 more than the average of these three numbers. Then the smallest of these three numbers is:
Option 1: 6
Option 2: 12
Option 3: 14
Option 4: 16
Correct Answer: 12
Solution : Let $(x–2),x$ and $(x+2)$ be the 3 consecutive even numbers. ⇒ Sum = $(x–2)+x+(x+2) = 3x$ Average of AP with an odd number of terms = middle term ⇒ Average = $x$ Since the sum of three consecutive even numbers is 28 more than the
Question : The GST (goods and service tax) passed by the government will be levied on which of the following products?
Option 1: Petroleum and crude oil
Option 2: Tobacco
Option 3: Natural gas
Option 4: Aviation turbine fuel
Correct Answer: Tobacco
Solution : The correct answer is Tobacco.
The GST rate for all tobacco goods is 28%. The GSTC will suggest a date for the implementation of GST on five petroleum products (crude oil, petrol, diesel, ATF and natural gas). The Goods and Services Tax (GST) is
Question : Salal is the Hydro Power project in :
Option 1: Haryana
Option 2: Jammu and Kashmir
Option 3: Himachal Pradesh
Option 4: Punjab
Correct Answer: Jammu and Kashmir
Solution : The correct option is Jammu & Kashmir.
Salal Hydroelectric Power Project is in the Indian state of Jammu & Kashmir. It's located on the Chenab River, which runs across northern India, including Jammu and Kashmir. The Salal Hydroelectric Power Project is one of
Question : What is the value of $\sec ^2 \theta - \cot ^2(90^\circ - \theta)$?
Option 1: 2
Option 2: 1
Option 3: –1
Correct Answer: 1
Solution : Given: $\sec^{2}\theta -\cot^{2}(90^\circ - \theta)$ $=\sec^{2}\theta- \tan^{2}\theta$ $=1$ Hence, the correct answer is 1.
Question : Direction: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
2, 2, 4, 6, ?, 10, 8, 14, 10
Option 2: 5
Option 3: 8
Option 4: 7
Correct Answer: 6
Solution : Given: 2, 2, 4, 6, ?, 10, 8, 14, 10
Here, Every alternate term starting from the first is a multiple of 2.
2 × 2 = 4; 2 × 3 = 6; 2 × 4 = 8; 2 × 5 = 10
Every
Question : Directions: Given below is a question followed by two statements I and II. Read both statements carefully to decide which is sufficient to answer the question. Six people - K, M, N, P, Q, and R are sitting around a circular table facing the centre. Who sits to the immediate right of K? (I) K sits third to the left of M. Only one person sits between K and N. R sits to the immediate left of N. (II) K sits second to the right of Q. Only two people sit between K and M. P sits second to the left of R.
Option 1: Data in statement I alone is sufficient to answer the question while data in statement II is not.
Option 2: Either data in statement I or statement II is sufficient to answer the question
Option 3: Data in statements I and II together are sufficient to answer the question.
Option 4: Data in statement II alone is sufficient to answer the question while data in statement I is not
Correct Answer: Either data in statement I or statement II is sufficient to answer the question
Solution : Given: (I) K sits third to the left of M. Only one person sits between K and N. R sits to the immediate left of N.
From the final arrangement using statement
Question : Identify the segment in the sentence which contains a grammatical error.
They will be ready leaving for the airport in an hour.
Option 1: ready leaving
Option 2: for the airport
Option 3: They will be
Option 4: in an hour
Correct Answer: ready leaving
Solution : The correct choice is the first option.
In place of the gerund form of the verb (leaving), the infinitive form of the verb (to leave) should be used because the infinitive form is used to show the purpose or intent of an action.
Therefore,
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