"0.26" was replaced by "(26/100)"
simplify 26/100
13/50
13/50 ÷ 100
13/5000 = 0.00260 Ans.
Q.2 5448 rounded off the nearest 1000 is?
A. 5000
B. 6000
C. 7000
D. 4000
Correct Answer) A: 5000
Description:
•5000•5448•6000
Therefore, 5448 rounded off the nearest 1000 is 5000.
Q.3 A rectangle has a length of 10cm and a width of 6cm. what is the area of rectangle?
A. 60 cm
B. 60 cm^2
C. 30 cm
D. 40 cm^2
Correct Answer) B: 60 cm^2
Description:
area of a rectangle = Length × Width
A = l × w
A = 10 cm x 6cm
A = 60 cm^2 Ans.
Q.4 In a class of 20 boys and 28 girls, what percent of the class are girls?
A. 70%
B. 58%
C. 60%
D. 72%
Correct Answer) B: 58%
Description:
Sum of total students: 20+28 = 48
The formula for percentage is (gain/whole) X 100 = %
In this case we want to know girls, so the gain would be the number of girls. So:
(28/48) X 100 = %
(0.583) X 100 =%
58.3 % are girls.
Q.5 Who was the founder of Algebra?
A. Al-Khwarizmi
B. Ibn al-Haytham
C. Ibn Sina
D. Muhammad ibn Zakariya al-Razi
Correct Answer) A: Al-Khwarizmi
Description:
Ilm al-jabr wa l-muqÄbala "The Science of Restoring and Balancing" by the Persian mathematician and astronomer al-Khwarizmi. In his work, the term al-jabr referred to the operation of moving a term from one side of an equation to the other, "balancing" referred to adding equal terms to both sides. Shortened to just algeber or algebra in Latin, the word eventually entered the English language during the fifteenth century, from either Spanish, Italian, or Medieval Latin. It originally referred to the surgical procedure of setting broken or dislocated bones. The mathematical meaning was first recorded (in English) in the sixteenth century.
Resource:
https://en.wikipedia.org/wiki/Algebra
Q.6 40 + 80/.4 = What number?
A. 252
B. 260
C. 240
D. 236
Correct Answer) C: 240
Description:
80/.4 = 80/.4 x 10/10
800/4 = 200, so
40 + 200 = 240
Q.7 If 10 tractors are needed to plow a field in 4 hours, how many tractors are needed to plow the field in 5 hours?
A. 9
B. 7
C. 6
D. 8
Correct Answer) D: 8
Description:
x/10 = 4/5 the second ratio is reversed, as the relation is resverse,
x = 10 x 4 /5 = 8
Q.8 Highest frequency entity in a set of data is called:
A. MOD
B. MEDIAN
C. MEAN
D. None of these
Correct Answer) A: MOD
Description:
The mode is the value that appears most often in a set of data values. If X is a discrete random variable, the mode is the value x at which the probability mass function takes its maximum value. In other words, it is the value that is most likely to be sampled.
Resource:
https://en.wikipedia.org/wiki/Mode_(statistics)
Q.9 Naveed got an average of 50 in 6 test. What should he get in the next test to attain the average of 60?
A. 120
B. 140
C. 125
D. 135
Correct Answer) A: 120
Description:
Total Marks in 6 test= 50 x 6= 300.
Total Marks required in 7 tests = 60 x 7 = 420, So the marks in 7th test will be:
420 - 300 = 120 Ans.
Q.10 A and B can do a job in 6 days, If A do the job alone he takes 10 days, what will be the time required by B to complete the job alone?
A. 7
B. 5
C. 6
D. 9
Correct Answer) C: 6
Description:
A = 1/10 , B = 1/x
1/10 + 1/x = 1/6
Q.11 Calculate the perimeter of a rhombus with each side equal to 6cm.
A. 36
B. 24
C. 12
D. 18
Correct Answer) B: 24
Description:
Perimeter of a Rhombus formula: P=4a
P = 4*6
P = 24 Ans.
*a = sides
Q.12 How many miles in 1 Kilometer?
A. 0.62
B. 0.89
C. 0.56
D. 0.49
Correct Answer) A: 0.62
Description:
1 kilometer is equal to 0.62137119 miles:
1 km = (1/1.609344) mi = 0.62137119 mi
Q.13 Sugar in stock is 5000 bags. 4000 bags have been sold. Percentage of the bags left behind is:
A. 30%
B. 35%
C. 25%
D. 20%
Correct Answer) D: 20%
Description:
Total Stock: 5000
Sold bages: 5000 - 4000 = 1000
Percentage: 1000/5000 x 100
20% Ans.
Q.14 If the sum of one third of a number and twice the same number is 28, Find the number:
A. 16
B. 10
C. 14
D. 12
Correct Answer) D: 12
Description:
Lets's suppose the number is "x"
x/3 + 2x = 28
7x = 84
x = 12 Ans.
Q.15 Hina weights 35 pound more than Sidra. If together they weight 200 pounds, What is the weight of Hina?
A. 117.5 Pounds
B. 120.5 Pounds
C. 114.9 Pounds
D. 112.4 Pounds
Correct Answer) A: 117.5 Pounds
Description:
Hira weight = 35
together weight = 200 pounds.
200 - 35 = 165
165 ÷ 2 = 82.5
35 than more = 82.5 + 35 = 117.5 Pounds. Ans
Q.16 Simple interest on Rs.400\- in 3 years @ 5%per annum is:
A. 65
B. 60
C. 55
D. 50
Correct Answer) B: 60
Description:
400*5/100 = 20
For 3 years:
3*20 = 60 Ans.
Q.17 840 ÷ 14 + 60 =?
A. 320
B. 420
C. 220
D. 120
Correct Answer) D: 120
Description:
840 ÷ 14 = 60
60 + 60 = 120
Q.18 8 : ? :: 1 : 4
A. 32
B. 30
C. 42
D. 40
Correct Answer) A: 32
Description:
8/x = 1/4
by cross multiplication:
x = 32
Q.19 If X% of 60 = 48, then x =?
A. 85
B. 84
C. 80
D. 87
Correct Answer) C: 80
Description:
x/100 * 60 = 48
x/5 * 3 = 48
x = 48 * 5/3 = 80
x = 80 Ans.
Q.20 72/2 ÷ 18/6 = ?
A. 36
B. 22
C. 20
D. 12
Correct Answer) D: 12
Description:
72/2 ÷ 18/6
72/2 x 6/18 = 12 Ans.
Q.21 36 + x = 3 x 4 - 2 x 5
A. -34
B. -24
C. -12
D. -27
Correct Answer) A: -34
Description:
36 + x = 3 x 4 - 2 x 5
36 + x = 12 - 10
x = 12 - 10 - 36
x = -34 Ans.
Q.22 ? of 2/3 = 1/2
A. 85
B. 80
C. 60
D. 75
Correct Answer) D: 75
Description:
let required number is 'x'
x/100 * 2/3 = 1/2
x = 1/2 * 3/2 * 100
x = 75 Ans.
Q.23 A rectangular room is 4m long 7m wide and 6m high. What is the total volume of the room in cubic meters?
A. 200m^3
B. 168m^3
C. 172m^3
D. 162m^3
Correct Answer) B: 168m^3
Description:
volume = 4m * 7m * 6m
volume = 168m^3 Ans.
Q.24 Mr and Mrs Sajjad have 3 daughters. each daughter has one brother, what is the total number of persons in the family?
A. 6
B. 8
C. 12
D. 10
Correct Answer) A: 6
Description:
Mr Sajjad
Mrs Sajjad
Daughter-1
Daughter-2
Daughter-3
Since each daughter has one brother, so they have one brother only, than total number of persons in the family are: 6
Q.25 Naveed buy 3 books for Rs.16 each. and four books for Rs.23 each. What will be the average price of the books?
A. 48
B. 36
C. 20
D. 16
Correct Answer) C: 20
Description:
Three books = 3 * 16 =48
Four books = 4 * 23 = 92
48 + 92 = 140 total price, divide 140 to total number of books
140 ÷ 7 = 20 Ans.
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