Staff Selection Commission Sub Inspector Exam
Question : Three successive discounts 22%, 17% and 11% are equivalent to a single discount of:
Option 1: approximately 42%
Option 2: approximately 25%
Option 3: approximately 50%
Option 4: approximately 45%
Correct Answer: approximately 42%
Solution : Single equivalent discount = $(a+b-\frac{a×b}{100}$)%, where $a$% and $b$% are successive discounts. So, a single equivalent discount of 17% and 22% $=17+22-\frac{17×22}{100}=39-3.74=35.26\%$ Now, a single equivalent discount of 35.26% and 11% $=35.26+11-\frac{35.26×11}{100}=46.16-3.88=42.28\% \approx42\%$ Hence, the correct answer is approximately 42%.
Question : Select the most appropriate idiom from the following options that can substitute the underlined part of the given sentence.
It is his first interview, so he has a nervous feeling.
Option 1: Butterflies in his stomach
Option 2: A slap on the wrist
Option 3: Tug at his heartstrings
Option 4: Icing on the cake
Correct Answer: Butterflies in his stomach
Solution : The correct choice is the first option.
Explanation:
Butterflies in his stomach refer to the feeling of nervousness or anxiety, especially before an important event like an interview. It captures the sense of uneasiness or fluttery sensations in the stomach due to
Question : The famous caves of Udayagiri and Khandagiri are located in:
Option 1: Uttarakhand
Option 2: Chhattisgarh
Option 3: Tripura
Option 4: Odisha
Correct Answer: Odisha
Solution : The correct option is Odisha.
In Bhubaneswar, Odisha, are the well-known Udayagiri and Khandagiri Caves. These caves are part of a hill complex and are old rock-cut constructions. The Udayagiri and Khandagiri Caves are well-liked tourist destinations of historical and archaeological value. Their elaborate
Question :
Pinna (external ear) is present in
Option 1:
Amphibians
Option 2:
Fish
Option 3: Mammals
Option 4: Reptile
Correct Answer: Mammals
Solution : The correct answer is Mammals.
The Pinna is the outermost part of the ear in mammals and is characterised by its composition of yellow cartilage and skin. It stands as a distinctive feature unique to this class of animals. The outer ear is further
Question : Study the given table and answer the question that follows. The table shows the production of five types of cars P, Q, R, S and T by a company from the year 1989 to 1994.
During the period 1989-94, which type of car featured a continuous decrease in production?
Option 1: S
Option 2: Q
Option 3: R
Option 4: T
Correct Answer: R
Solution : Using the given graph from the years 1989 to 94: Q = 16 > 10 < 14 > 12 = 12 < 14 R = 21 > 17 > 16 > 15 > 13 > 8 S = 4 < 6 <10 < 16 <
Bacteriophage was discovered by
Felix d’Herelle and Frederick Twort
A.J. Kluyver and van Niel
Option 3: Paul R Ehrlich
Option 4: Burrill and Smith
Correct Answer:
Solution : The correct answer is Felix d’Herelle and Frederick Twort.
Bacteriophage is a virus that destroys bacteria. The term bacteriophage was coined by Felix d'Herelle in 1918 and was found by Felix d’Herelle and Frederick Twort in the year 1915. Bacteriophage
Question : Directions: Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number. 16 : 128 :: 18 : 162 :: 22 : ?
Option 1: 246
Option 2: 242
Option 3: 88
Option 4: 484
Correct Answer: 242
Solution : Given: 16 : 128 :: 18 : 162 :: 22 : ?
Like, 16 : 128→16 × (16 ÷ 2) = 16 × 8 = 128 18 : 162→18 × (18 ÷ 2) = 18 × 9 = 162 Similarly, for 22 : ?→22 ×
Question : The ratio of the two numbers is 5 : 7 and their HCF is 3. Their LCM is:
Option 1: 75
Option 2: 105
Option 3: 125
Option 4: 35
Correct Answer: 105
Solution : The two numbers are in the ratio 5 : 7, and their highest common factor (HCF) is 3. Therefore, the numbers are 5 × 3 = 15 and 7 × 3 = 21. The least common multiple (LCM) of two numbers is given by the
Question : Directions: Select the option in which the numbers do not share the same relationship as that shared by the given pair of numbers. (23, 115, 207)
Option 1: (16, 80, 144)
Option 2: (21, 105, 189)
Option 3: (8, 35, 72)
Option 4: (6, 30, 54)
Correct Answer: (8, 35, 72)
Solution : Given: (23, 115, 207)
Here, 23 × 5 = 115; 23 × 9 = 207
Let's check the options – First option: (16, 80, 144); 16 × 5 = 80; 16 × 9 = 144 Second option: (21, 105, 189); 21 × 5
Question : Directions: Based on the position in the English alphabetical order, three of the following letter clusters are alike in some manner and one is different. Select the odd letter cluster.
Option 1: LNSV
Option 2: FHMP
Option 3: BDIL
Option 4: JLPT
Correct Answer: JLPT
Solution : Let's check each option – First option: LNSV; L+ 2 = N; N + 5 = S; S + 3 = V Second option: FHMP; F + 2 = H; H + 5 = M; M + 3 = P Third option: BDIL; B
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