Staff Selection Commission Sub Inspector Exam
Question : Directions: Four number–pairs are given out of which three are alike in a certain way and one is different. Select the number–pair that is different from the rest.
Option 1: 18 : 306
Option 2: 23 : 552
Option 3: 13 : 182
Option 4: 25 : 650
Correct Answer: 18 : 306
Solution : Let's check each option – First option: 18 : 306→182 + 18 = 342 Second option: 23 : 552→232 + 23 = 552 Third option: 13 : 182→132 + 13 = 182 Fourth option: 25 : 650→252 + 25
Question : Directions: There are two statements followed by two conclusions I and II. Assuming the statements are true, decide which one of the conclusions logically follows, disregarding commonly known facts. Statements: All poets are intelligent. All singers are intelligent. Conclusions: I. All singers are poets. II. Some intelligent persons are not singers.
Option 1: Only conclusion I follows
Option 2: Only conclusion II follows
Option 3: Either conclusion I or II follows
Option 4: Neither conclusion I nor II follows
Correct Answer: Neither conclusion I nor II follows
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusion – Conclusion (I): All singers are poets – From the Venn diagram, there is no direct relation between poets and singers. So, no
Question : Directions: Select the set in which the numbers are related in the same way as the numbers of the following 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.) (7, 91, 98); (4, 52, 56)
Option 1: (12, 156, 168)
Option 2: (3, 36, 42)
Option 3: (8, 80, 96)
Option 4: (5, 25, 60)
Correct Answer: (12, 156, 168)
Solution : Given: (7, 91, 98); (4, 52, 56)
Like, (7, 91, 98)→7 × 13 = 91; 7 × 14 = 98 (4, 52, 56)→4 × 13 = 52; 4 × 14 = 56
Let's check the options – First option: (12, 156, 168)→12 ×
Question : Directions: In a certain code language, CRUDE is written as 5421183, and BOSTON is written as 14152019152. How will DOCKET be written in that language?
Option 1: 815611520
Option 2: 401022630
Option 3: 169251202
Option 4: 205113154
Correct Answer: 205113154
Solution : Given: CRUDE is written as 5421183 and BOSTON is written as 14152019152.
Determine the place value of the letters of CRUDE, and then write these values in reverse order, to get the required code – C→3; R→18; U→21; D→4; E→5 Now, write the place values
Question : Directions: Select the option in which the numbers share the same relationship as that shared by the given set of numbers. (9, 28, 85)
Option 1: (14, 52, 156)
Option 2: (7, 22, 67)
Option 3: (11, 34, 102)
Option 4: (3, 12, 37)
Correct Answer: (7, 22, 67)
Solution : Given: (9, 28, 85)
Add 1 to three times the first number to get the second number, and add 4 to nine times the first number to get the third number. (9, 28, 85)→(9 × 3) + 1 = 27 + 1 =
Question : The cost price of an article is Rs. 1200. On buying four such articles, the customer gets one for free. If the selling price of each article is Rs. 1800, determine the net percentage profit earned by the shopkeeper on selling four articles.
Option 1: 12%
Option 2: 20%
Option 3: 18%
Option 4: 15%
Correct Answer: 20%
Solution : The cost price of each article is Rs. 1200. Since one is given for free on buying four. The cost price for five articles = Rs. 1200 × 5 = Rs. 6000 However, the shopkeeper sells four articles for Rs. 1800 each. The total selling
Question : Two equal sums are lent at 10% and 8% simple interest p.a. respectively, at the same time. The first sum was received 2 years earlier than the second one and the amount received in each case was INR 36,900. Each sum was ______.
Option 1: INR 20,500
Option 2: INR 20,200
Option 3: INR 18,100
Option 4: INR 21,500
Correct Answer: INR 20,500
Solution : Given : $R_1$ = 10% $R_2$ = 8% $A$ = INR 36900 Let the year be $t$ years and the principal be $P$ According to the question, $\Rightarrow (t + 2)\times 8 = t\times 10$ $\Rightarrow 8t + 16 = 10t$ $\Rightarrow 2t =
Question : Directions: In the given figure, how many leather bags are not red?
Option 1: 29
Option 2: 76
Option 3: 43
Option 4: 51
Correct Answer: 51
Solution : According to the question, need to find only the common region of bag and leathers but not include the common region of red. So, in the below diagram, the shaded part represents leather bags that are not red.
Therefore, the number of leather bags that
Question : Which of the following is an INCORRECT match?
Option 1: Pressure – Pascal
Option 2: Volume – metre
Option 3: Force – Newton
Option 4: Work done – joule
Correct Answer: Volume – metre
Solution : The correct answer is Volume-metre.
The SI unit of Pressure is Pascal, and force is Newton, and for Work is joule. All the options are correctly matched, but the volume is incorrectly matched with the metre. The SI unit
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure (on line MN). So, the left side of the reflected image will appear
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