Staff Selection Commission Combined Graduate Level Exam
Question : In an examination, the average marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects are 58, his score in Maths is:
Option 1: 50
Option 2: 52
Option 3: 60
Option 4: 74
Correct Answer: 74
Solution : Given: The average marks of John in English, Maths, Hindi and Drawing = 50 $\therefore$ The sum of marks in English, Maths, Hindi and Drawing = 50 × 4 = 200 The average marks in Maths, Science, Social Studies and Craft = 70 $\therefore$ The
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. 25 * 82 * 12 * 6 * 8 * 91
Option 1: –, ×, +, ÷, =
Option 2: ÷, +, –, ×, =
Option 3: +, –, ÷, ×, =
Option 4: ×, +, ÷, –, =
Correct Answer: +, –, ÷, ×, =
Solution : Given: 25 * 82 * 12 * 6 * 8 * 91
Replace the * sign given in the equation with the assigned signs in the options one by one – First option: –, ×, +, ÷, = 25 – 82
Question : Lake Kolleru is situated in which of the following states?
Option 1: Andhra Pradesh
Option 2: Tamil Nadu
Option 3: Karnataka
Option 4: Kerala
Correct Answer: Andhra Pradesh
Solution : The correct option is Andhra Pradesh.
The location of Lake Kolleru is in Andhra Pradesh State. Situated in Andhra Pradesh between the districts of Krishna and West Godavari, it is one of the biggest freshwater lakes in the nation. It is designated as
Question : The Sundarbans or the 'Mangrove' forests are found in
Option 1: Kutch Peninsula
Option 2: Western Ghats
Option 3: Konkan Coast
Option 4: Deltaic West Bengal
Correct Answer: Deltaic West Bengal
Solution : The correct option is - Deltaic West Bengal.
One of the biggest forests in the world, the Sundarbans mangrove forest is located on the Bay of Bengal's Ganges, Brahmaputra, and Meghna river deltas. The region that comprises 40% of the area is in
Question : The volume of a cylinder is 4312 cm3. Its curved surface area is one-third of its total surface area. Its curved surface area (in cm2) is: (Take $\pi=\frac{22}{7}$ )
Option 1: 572 cm2
Option 2: 528 cm2
Option 3: 660 cm2
Option 4: 616 cm2
Correct Answer: 616 cm2
Solution : According to the question, Curved surface area = $\frac{\text{Total surface area}}{3}$ ⇒ $2\pi rh = \frac{2\pi r(h + r)}{3}$ ⇒ $3h = (h + r)$ ⇒ $2h = r$ Now, The volume of a cylinder = 4312 cm3 ⇒ $\pi r^2h =
Question : Directions: In a certain code language, ESCAPE is written as 49, and PRISON is written as 91. How will FREEDOM be written in that language?
Option 1: 66
Option 2: 59
Option 3: 64
Option 4: 55
Correct Answer: 66
Solution : Given: ESCAPE is written as 49, and PRISON is written as 91.
Place values of the letters of ESCAPE are→E = 5; S = 19; C = 3; A = 1; P = 16; E = 5 Now, add the place values→5 + 19 +
Question : Which of the following is known as ammonia?
Option 1: NH3
Option 2: PH3
Option 3: NO3
Option 4: NO2
Correct Answer: NH3
Solution : The correct answer is NH3.
Ammonia, sometimes referred to as NH3, is a colourless gas made up of hydrogen and nitrogen atoms that have a characteristic odour. It is created spontaneously by the human body and by microscopic bacterial molecules,
Question : Identify an example of organisms that are free-swimming and bottom-dwelling forms.
Option 1: Phytoplankton
Option 2: Zooplankton
Option 3: Fungi
Option 4: Jellyfishes
Correct Answer: Zooplankton
Solution : The correct option is Zooplankton.
Zooplankton is a diverse group of organisms that includes free-swimming and bottom-dwelling forms.
Some zooplankton, like copepods, move freely in the water, while others, such as certain larval stages or benthic species, can be found near the bottom of
Question : Directions: In a certain code language, DOVE is coded as 1122214 and CROW is coded as 823311. How will MYNA be coded in that language?
Option 1: 1121512
Option 2: 1132512
Option 3: 1132412
Option 4: 1132522
Correct Answer: 1132512
Solution : Given: DOVE is coded as 1122214 and CROW is coded as 823311.
Write the opposite letters of the DOVE and shuffle their position as shown and then subtract 1 from the positional value of the letters, to obtain the required code –
So, DOVE is
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at AB as shown.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per mirror image properties, closer things appear closer to the mirror in reflection. According to the information provided, if the mirror is placed on the right side of the figure (on line AB), the right of the reflected image will appear as the left, and
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