PPSC PAST PAPERS ALL MCQS 2023 OF BASIC MATHEMATICS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- 288
- 188
- 388
- None of these
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Explanation
To find the number, first, find the difference in the ratio:
9 - 7 = 2
Now, divide 224 by 7 and multiply by 9:
(224 ÷ 7) × 9 = 288
ڈیٹا اور معلومات جمع کرنے کا بہترین طریقہ _____ ہے؟
- Questionnaire
- Visit
- Sharpness
- None of these
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Explanation
A questionnaire is a structured set of questions designed to collect data and information from respondents efficiently.It allows for standardized data collection.It ensuring consistency and comparability across responses.
- 11
- 10
- 9
- None of these
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Explanation
There are 10 two-digit numbers that are divisible by 9: 18, 27, 36, ..., 99
The smallest two-digit number that is divisible by 9 is 18, and the largest is 99.
- 35
- 38
- 28
- None of these
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Explanation
Let z = 4y-1
When x = 14, y = 2, z = (4*2) – 1 = 7
Now, x varies directly as z = 4y-1
When y = 5, z = (4*5) – 1 = 19
x 14 7
y - 19
Therefore, x = (14*19)/7 = 38
- 15
- 12
- 13
- None of these
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Explanation
12 men × 10 days = 120 man-days
To complete the same work in 8 days:
120 man-days ÷ 8 days = 15 men
- 7
- 8
- 9
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Given equation:
x - 4 = 21(1/x)
Multiply both sides by x:
x² - 4x = 21
Rearrange the equation:
x² - 4x - 21 = 0
Factor the quadratic equation:
(x - 7)(x + 3) = 0
Solve for x:
x = 7 (since x is a positive number)
- 0.003
- 0.3
- 0.03
- None of these
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Explanation
0.5 × 0.06 = 0.03
- 1
- -1
- 10
- -10
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Explanation
To find the farthest number from -1 on the number line:
-1 is the reference point.
-10 is 9 units away from -1.
10 is 11 units away from -1.
5 is 6 units away from -1.
Since 10 is the farthest (11 units away), the correct answer is: 10
- 3:00 AM on Thursday
- 3:10 AM on Thursday
- 2:45 AM on Thursday
- None of these
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Explanation
To find the arrival time, add 5 hours and 30 minutes to the departure time:
Departure time: 21:15 PM (Wednesday)
Add 5 hours: 02:15 AM (Thursday)
Add 30 minutes: 02:45 AM (Thursday)
The correct answer is: 2:45 AM on Thursday
- 15/31
- 3/14
- 9/14
- None of these
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Explanation
Let's denote the denominator as x. Then, the numerator is x - 5.
Original fraction: (x - 5)/x
After adding 1 to both numerator and denominator:
New fraction: (x - 5 + 1)/(x + 1) = (x - 4)/(x + 1)
Given that the new fraction is 2/3:
(x - 4)/(x + 1) = 2/3
Cross-multiply:
3(x - 4) = 2(x + 1)
Expand and solve:
3x - 12 = 2x + 2
x = 14
So, the original fraction is:
(x - 5)/x = (14 - 5)/14 = 9/14