41) Sudhir is 4.5 times as efficient as Aarav. If they work together, they can complete a piece of work in 8 days. How many days will Aarav take to do the same work alone?
A) 36
B) 48
C) 44
D) 40
Explanation:We are given:
* Sudhir is 4.5 times as efficient as Aarav
* Together, they complete the work in 8 days
We are to find how many days Aarav alone would take.
—
Step-by-step Shortcut:
Let Aarav’s efficiency = 1 unit/day, so Sudhir = 4.5 units/day
→ Combined efficiency = 
units/day
Total work = Efficiency × Time =
Now, Aarav alone does 1 unit/day, so:
—
✅ Final Answer: Option 3. 44 days ✅
42) Which of the following countries does NOT have direct access to a sea?
A) Myanmar
B) Bangladesh
C) Nepal
D) Pakistan
43) A solid metallic sphere of radius 3 cm is melted and drawn into a wire of thickness 4 mm.What is the length of the wire (in m)?
A) 9.25
B) 7.5
C) 9
D) 8
Explanation:To find the length of the wire formed by melting a solid metallic sphere, we’ll follow these steps:
Given:
– Radius of the sphere (r): 3 cm
– Thickness (diameter) of the wire (d): 4 mm = 0.4 cm
*(Note: Thickness refers to the diameter, so the radius of the wire 
cm)*
Step 1: Calculate the Volume of the Sphere
The volume 
of a sphere is given by:
Substituting r = 3 cm:
Step 2: Relate the Volume to the Wire
When the sphere is melted and drawn into a wire, the volume remains the same. The wire is a cylinder with:
– Radius 
: 0.2 cm
– Length 
: To be found
The volume of the cylinder (wire) is:
Setting this equal to the sphere’s volume:
Simplify:
0.04 L = 36
Step 3: Convert Centimeters to Meters
Final Answer:
44) Who approved a policy on declassification of war histories in June 2021?
A) Amit Shah
B) Jyotiraditya M Scindia
C) Rajnath Singh
D) Narendra Modi
45) What is the default alignment of numbers in an Excel worksheet?
A) Justify
B) Center
C) Right
D) Left