PPSC JUNIOR CLERK PAST PAPER 2021 (P-1)
PPSC Junior Clerk Past Papers Click Here
Show Answers
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
پہلا آپریٹنگ سسٹم _____ میں تیار کیا گیا تھا؟
1976
1945
1950
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The first operating system, known as GM-NAA I/O , was developed in 1950 for IBM computers. It was designed to simplify the execution of programs by managing hardware and software resources.
جو ڈیسک ٹاپ کمپیوٹر میں شامل ہے؟
Hard disk
CPU
Motherboard
All of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
A desktop computer includes a hard disk for storage , a CPU (Central Processing Unit) for processing data , and a motherboard that connects all the components together. All of these components are essential for the basic functioning of a desktop computer.
ڈسک پر ڈیٹا محفوظ کرنے کی بہترین ٹیکنالوجی ______ ہے؟
Laser
Tapes
Punch cards
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Laser technology is used in optical disks (like CDs and DVDs).
It allowing for precise data storage and retrieval.
کون سا ملٹی ٹاسکنگ آپریٹنگ سسٹم نہیں ہے؟
DOS
Windows
Linux
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
DOS (Disk Operating System) is a single-tasking operating system, meaning it can only run one program at a time. Windows and Linux are multitasking operating systems, capable of running multiple programs simultaneously.
ایک آدمی 1/3 گھنٹہ پیدل چلا اور پھر 1/2 گھنٹے تک آٹوموبائل کی سواری حاصل کی، اس نے آٹوموبائل پر کتنا وقت گزارا؟
1.4
3
0.3
0.6
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Waking - 1/3 hours = 20 min
Motorbike ride = 1/2 hours = 30 min
Total journey = 20 + 30 = 50 min
Portion of Bike ride = 30/50 = 0.6
ND16-3-2023
125/999
125/9
125/99
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Let x = 0.125125125...
Multiply x by 1000:
1000x = 125.125125...
Subtract x from 1000x:
999x = 125
Divide by 999:
x = 125/999
x + 6/x
x + 8/x
x + 4/x
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
(1+1/x) (1+1/x+1) (1+1/x+2) (1 + 1/x + 3)
Simplify each term:
(x+1)/x * (x+2)/x * (x+3)/x * (x+4)/x
Multiply the numerators and denominators:
(x+1)(x+2)(x+3)(x+4) / x^4
Expand the numerator:
x^4 + 10x^3 + 35x^2 + 50x + 24
Divide by x^4:
1 + 10/x + 35/x^2 + 50/x^3 + 24/x^4
Now, simplify the expression:
Combine like terms:
x + 4/x
4
3
2
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
If 4 is removed, the sum of the remaining numbers is 0 + 2 + 5 + 9 = 16.
The average remains the same, 16/4 = 4 .
23 years
22 years
33 years
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Sum of the ages of 3 friends =3×23= 69 years
Sum of the ages of 4 friends =4×23= 92 years
∴ Age of 4th friend = 92 years - 69 years = 23 years.
0.01
0.001
0.2
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
0.005 × 0.2 = 0.001
So, the product of 0.005 and 0.2 is 0.001.
