Staff Selection Commission Combined Graduate Level Exam
Question : Directions: Select the option in which the given figure is embedded (rotation is NOT allowed).
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Since the rotation is restricted. So, the embedded figure will have the same orientation as the main figure. By comparison of all the option figures, the given question figure is embedded only in the third option figure.
Hence, the third option is correct.
Question :
Directions: In the following question a series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series. 6, 18, 54, ?, 486, 1458
Option 1: 164
Option 2: 160
Option 3: 168
Option 4: 162
Correct Answer: 162
Solution : Given: 6, 18, 54, ?, 486, 1458
Let's apply the pattern – 6 × 3 = 18; 18 × 3 = 54; 54 × 3 = 162; 162 × 3 = 486; 486 × 3 = 1458
162 is the missing number. Hence, the fourth
Question : The value of $\frac{2}{3}-\frac{5}{6} \times \frac{4}{5} \div \frac{4}{3}+\frac{1}{2}$ is:
Option 1: $\frac{2}{3}$
Option 2: $\frac{2}{5}$
Option 3: $-\frac{11}{60}$
Option 4: $0$
Correct Answer: $\frac{2}{3}$
Solution : Given: $\frac{2}{3}-\frac{5}{6} \times \frac{4}{5} \div \frac{4}{3}+\frac{1}{2}$ = $\frac{2}{3}-\frac{5}{6} \times \frac{4}{5} \times \frac{3}{4}+\frac{1}{2}$ = $\frac{2}{3}-\frac{5}{6} \times \frac{3}{5}+\frac{1}{2}$ = $\frac{2}{3}- \frac{1}{2}+\frac{1}{2}$ = $\frac{2}{3}$ Hence, the correct answer is $\frac{2}{3}$.
Question : If $a+\frac{1}{b}=b+\frac{1}{c}=c+\frac{1}{a}$ where $a \neq b\neq c\neq 0$, then the value of $a^{2}b^{2}c^{2}$ is:
Option 1: –1
Option 2: abc
Option 3: 0
Option 4: 1
Correct Answer: 1
Solution : $a+\frac{1}{b}=b+\frac{1}{c}=c+\frac{1}{a}$ $⇒a-b=\frac{1}{c}-\frac{1}{b}=\frac{b-c}{bc}...(i)$ $⇒b-c=\frac{1}{a}-\frac{1}{c}=\frac{c-a}{ac}...(ii)$ $⇒a-c=\frac{1}{a}-\frac{1}{b}=\frac{b-a}{ba}...(iii)$ Multiplying the above equations, we have, $⇒(a-b)(b-c)(a-c)=(\frac{b-c}{bc})(\frac{c-a}{ac})(\frac{b-a}{ba})$ $⇒(a-b)(b-c)(a-c)=(\frac{(b-c)(c-a)(b-a)}{a^2b^2c^2})$ $⇒ a^2b^2c^2=(\frac{(b-c)(c-a)(b-a)}{(a-b)(b-c)(a-c)})$ $a \neq b\neq c\neq 0$ $⇒ a^2b^2c^2= 1$ Hence, the correct answer is 1.
Question : Which rock is found in association with rocks composed of calcium carbonates?
Option 1: Limestone
Option 2: Gold
Option 3: Iron
Option 4: Diamond
Correct Answer: Limestone
Solution : The correct option is Limestone.
Limestone is primarily composed of calcium carbonate (CaCO3). It frequently coexists with other sedimentary rocks, such as chalk, that contain calcium carbonate. The mineralogical compositions and the geological processes that produced these rocks are similar. They go by
Question : Sarojini Naidu was elected the first Indian woman President of the Indian National Congress at __________.
Option 1: Kanpur
Option 2: Ahmedabad
Option 3: Delhi
Option 4: Nagpur
Correct Answer: Kanpur
Solution : The correct answer is Kanpur.
Sarojini Naidu was elected as the first Indian woman President of the Indian National Congress in 1925. This historic event took place during the Kanpur session of the Congress. She played a significant role in the Indian independence movement
Question : Select the sentences that contain no spelling errors.
Option 1: I saw the dress catalouge pieces of Asha’s corchiture collection.
Option 2: I saw the dress catalougue pieces of Asha’s couture collection.
Option 3: I saw the dress catalougue pieces of Asha’s corchiture collection.
Option 4: I saw the dress catalogue pieces of Asha’s couture collection.
Correct Answer: I saw the dress catalogue pieces of Asha’s couture collection.
Solution : The correct choice is the fourth option.
Explanation: The word couture is used to describe high-fashion clothing that is made to order for a specific customer. In the given sentence, the correct spelling is
Question : Which of the following is not an indirect tax?
Option 1: Excise tax
Option 2: Goods and services tax
Option 3: Customs duty
Option 4: Wealth tax
Correct Answer: Wealth tax
Solution : The correct answer is a Wealth tax.
Wealth tax is not considered an indirect tax; rather, it is a direct tax. The distinction between direct and indirect taxes lies in how they are imposed and who bears the ultimate economic burden of the
Question : The ratio of the number of coins of 25 paise, 50 paise, INR 2 and INR 5 is 5 : 4 : 3 : 1, respectively. If the total amount of the coins is INR 285, then the difference between the number of 25 paise and INR 5 coins is:
Option 1: 80
Option 2: 30
Option 3: 40
Option 4: 60
Correct Answer: 80
Solution : The value ratio of coins of 25 paise, 50 paise, INR 2 and INR 5 = (5 × 0.25) : (4 × 0.50) : (3 × 2) : (1 × 5) ⇒ Value ratio of coins of 25 paise, 50 paise, INR 2 and INR
Question : A can do $\frac{1}{3}$rd of a piece of work in 32 days, B can do $37 \frac{1}{2}$% of the same work in 24 days, while C can do 60% of the same work in 48 days. B and C together started and worked for x days. After x days, B left and A joined C and together, completed the remaining work in (x + 8) days. If the ratio of the work done by (B + C) together to the work done by (A + C) together is 9 : 11, then what fraction of the same work can be completed by C alone in 3.5x days?
Option 1: $\frac{18}{25}$
Option 2: $\frac{4}{5}$
Option 3: $\frac{7}{10}$
Option 4: $\frac{3}{4}$
Correct Answer: $\frac{7}{10}$
Solution : Given: A can do $\frac{1}{3}$ of a task in 32 days. Total work done = Number of days × Efficiency So, A can complete the task in 32 × 3 = 96 days B can do $37 \frac{1}{2}$% of the same task in 24 days,
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