List of practice Questions

Six students scored different marks in an exam. A scored more than B but less than C. D scored more than E but less than B. F scored more than A but less than C. Who scored the third highest?
From the word ARRANGEMENT, how many distinct 9-letter words can be formed?
Which traversal of a binary tree gives the nodes in non-decreasing order if the tree is a Binary Search Tree?
In a paging system, the page table is stored in memory. If memory access time is 100 ns, what is the effective access time if one page table lookup is needed per access?

लोगों तक अपनी बात पहुँचाने के माध्यमों में ‘डायरी का एक पन्ना’ पाठ में वर्णित तरीकों और वर्तमान तरीकों में क्या अंतर आया है? स्पष्ट कीजिए। 
 

Select the option that best completes the sentence: "Had I known about the meeting earlier, I ____ attended it."
Draw the structure of the major monohalo product for each of the following reactions:
methylbenzene
The value of \( \cos \left( \frac{\pi}{6} + \cot^{-1}(-\sqrt{3}) \right) \) is:
A block slides down a smooth inclined plane, and its acceleration is found to be \( \frac{g}{8} \). If \( g \) is the acceleration due to gravity, what is the angle of inclination \( \theta \) of the plane?
If the height of a projectile at a time of 2 s from the beginning of motion is 60 m, then the time of flight of the projectile is (Acceleration due to gravity = 10 m/s\(^2\))
Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every T min. A girl is driving scooty with a speed of 60 km/h in the direction X to Y. She notices that a bus goes past her every 30 minutes in the direction of her motion, and every 10 minutes in the opposite direction. Choose the correct option for the period T of the bus service and the speed (assumed constant) of the buses.
Imagine you are a part of a 'Self Help Group' (SHG). Explain the working system of the Self Help Group (SHG) to the new member.
If \( p \) and \( q \) are respectively the order and degree of the differential equation \( \frac{d}{dx} \left( \frac{dy}{dx} \right)^3 = 0 \), then \( (p - q) \) is:
Two blocks of masses 8 kg and 12 kg kept on a smooth horizontal table are connected to the ends of a light string as shown in the figure. If a horizontal force of 500 N is applied to the block of mass 12 kg, then the tension in the string connecting the blocks is
Two blocks of masses 8 kg and 12 kg
If the normal drawn to the hyperbola \( xy = 16 \) at (8, 2) meets the hyperbola again at a point \((\alpha, \beta)\), then \( |\beta| + \frac{1}{|\alpha|} = \)
Draw the structure of the major monohalo product for each of the following reactions:
major monohalo product
If a line makes angles of \( \frac{3\pi}{4} \) and \( \frac{\pi}{3} \) with the positive directions of \( x \), \( y \), and \( z \)-axes respectively, then \( \theta \) is:
If the binding energy per nucleon of deuteron (\( ^1\mathrm{H}^2 \)) is 1.15 MeV and an \(\alpha\)-particle has a binding energy of 7.1 MeV per nucleon, then the energy released per nucleon in the given reaction is \[ ^1\mathrm{H}^2 + ^1\mathrm{H}^2 \rightarrow ^2\mathrm{He}^4 + Q \]
In a simply supported beam with a uniform load, the shear force is maximum at:
"Some animals rely on environmental cues for sex determination." Justify this statement giving an example.
While burning a magnesium ribbon in air, list two safety measures which should be followed. Also state two observations of this activity.

Who was the first President of India? 
 

Choose the grammatically correct sentence:

Which company became the first in 2025 to achieve a market value of $4 trillion? 
 

Which country became the first to officially ban the use of cash transactions for goods and services exceeding $500 in 2025?