Staff Selection Commission Combined Higher Secondary Level Exam
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. 3, 6, 11, 20, ?
Option 1: 42
Option 2: 41
Option 3: 37
Option 4: 47
Correct Answer: 37
Solution : Given: 3, 6, 11, 20, ?
Let's apply the pattern – 3 × 2 – 0 = 6 – 0 = 6 6 × 2 – 1 = 12 – 1 = 11 11 × 2 – 2 = 22 – 2 = 20 20
Question : A sum of Rs. 3000 is invested in a scheme of simple interest. The rate of interest in this scheme is 10 percent per annum. If Rs. 1200 interest is obtained, then for how many months is the sum invested?
Option 1: 30 months
Option 2: 36 months
Option 3: 40 months
Option 4: 48 months
Correct Answer: 48 months
Solution : Sum, $P$ = Rs. 3000 Rate, $R$ = 10% Simple interest, SI = Rs. 1200 Let $T$ be the term (in years) Simple interest = $\frac{\text{Principal × Rate × Time}}{100}$ ⇒ $1200$ = $\frac{3000 × T × 10}{100}$ ⇒ $T$ = $\frac{120000}{30000}$ = 4
Question : Hari Prasad Chaurasia is a renowned player of
Option 1: shehnai
Option 2: tabla
Option 3: sarod
Option 4: flute
Correct Answer: flute
Solution : The correct answer is the flute.
The flute is also famous by the name of Bansuri/ Bamboo flute. Hari Prasad Chaurasia is an eminent flute. He is the founder of Vrindavan Gurukul, located in Mumbai. He received many awards like Padma Bhushan, Padma Vibhushan,
Question : What is the name of the 87th element on the periodic table that has no known biological role because it has a half-life of only 22 minutes?
Option 1: Meitnerium
Option 2: Dubnium
Option 3: Seaborgium
Option 4: Francium
Correct Answer: Francium
Solution : The correct answer is Francium.
The 87th element on the periodic table is Francium, which has no known biological role due to its extreme radioactivity and short half-life. Francium is a chemical element with the atomic number 87, and the symbol Fr. It is
Question : Directions: Find out from among the four alternatives how the pattern would appear when the transparent sheet is folded at the dotted line.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : When the given unfolded transparent sheet is folded, it will look like –
Hence, the second option is correct.
Question : Directions: Select the letter cluster from among the given options that can replace the question mark (?) in the following series. ENQR, CPOT, ?, YTKX
Option 1: BSNW
Option 2: ANMR
Option 3: EROV
Option 4: ARMV
Correct Answer: ARMV
Solution : Given: ENQR, CPOT, ?, YTKX
Subtract 2 and add 2 alternatively from each letter of the previous term to obtain the next term in the series – ENQR→ E – 2 = C; N + 2 = P; Q – 2 = O; R
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown.
Solution : As per the mirror image properties, closer things appear close 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
Question : Directions: In the following question, select the one which is different from the other three alternatives.
Option 1: 1625
Option 2: 3649
Option 3: 6481
Option 4: 5025
Correct Answer: 5025
Solution : Let's check the options –
First option: 1625; The number formed by the first two digits is 16 which is a perfect square of 4. The number formed by the last two digits is 25 which is a perfect square of 5. 4 and 5
Question : Directions: Three of the four groups of words are alike in some manner. Select the odd group of words.
Option 1: (Stock, Troupe, Robber)
Option 2: (Crowd, Army, Herd)
Option 3: (Team, Council, Bouquet)
Option 4: (Shoal, Flock, Chorus)
Correct Answer: (Stock, Troupe, Robber)
Solution : Let's check the options – First option: (Stock, Troupe, Robber); In this set, stock and troupe are terms used to represent groups or collections of entities. Stock refers to a group of animals, particularly domestic livestock. On the other hand, a troupe is
Question : Two similar triangles are given i.e. $\triangle$LMN ~ $\triangle$PQR, with measurement of angle and side as $\angle$ L = 40°, $\angle$ N = 80°, LM = 6 cm, LN = 8 cm and PQ = 7.5 cm. Find the value of $\angle$ Q and side PR, respectively.
Option 1: 60° and 20 cm
Option 2: 50° and 6.5 cm
Option 3: 40° and 10 cm
Option 4: 60° and 10 cm
Correct Answer: 60° and 10 cm
Solution : As $\triangle LMN$ and $\triangle PQR$ are similar ⇒ $\angle L = \angle P=40°$ and $\angle N = \angle R=80°$ We know, the sum of angles of a triangle = 180° ⇒ $\angle P + \angle Q + \angle R=180°$ ⇒ $40°+\angle
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