Therefore, 5448 rounded off the nearest 1000 is 5000.
Q.2 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.3 What number increased by 20% of itself is equal to 102?
A. 85
B. 75
C. 90
D. 65
Correct Answer) A: 85
Description:
Solution:
x + 20/100*x = 102
x + 1/5 *x = 102
5x + x/5 = 102
6/5*x = 102
6x = 102*5
6x = 510
x = 510/6
x = 85 Ans.
Q.4 When 4 dice are thrown, what is the probability that the same number appears on each of them?
A. 1/216
B. 3/417
C. 2/445
D. 4/523
Correct Answer) A: 1/216
Description:
Solution:
Sample space = 6x6x6x6 =1296
Possible outcomes = 6
Probability = 6/1296
= 1/216 Ans.
Q.5 A histogram is a set of adjacent:
A. rectangles
B. circles
C. triangles
D. squares
Correct Answer) A: rectangles
Description:
A histogram is an approximate representation of the distribution of numerical data. It was first introduced by Karl Pearson. To construct a histogram, the first step is to "bin" (or "bucket") the range of values—that is, divide the entire range of values into a series of intervals—and then count how many values fall into each interval. The bins are usually specified as consecutive, non-overlapping intervals of a variable. The bins (intervals) must be adjacent and are often (but not required to be) of equal size.
Q.6 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.7 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.8 Three hundredths is the same as:
A. 0.003
B. 0.03
C. 0.300
D. 30.00
Correct Answer) B: 0.03
Description:
Discription)
Solution: 3/100 = 0.03 Ans.
Q.9 If x - 4 = 11, then the value of x - 8 is:
A. 9
B. 7
C. 6
D. 4
Correct Answer) B: 7
Description:
x - 4 = 11
x = 11 + 4
x = 15
Now, x - 8
putting the value of x:
15 - 8 = 7 Ans.
Q.10 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.12 If, x+y=6, y+z=7, z+x=9. Find the arithmetic mean of x, y, and z.
A. 14/9
B. 11/3
C. 13/5
D. 15/4
Correct Answer) B: 11/3
Description:
Solution:
x+y + y+z + z+x = 6 + 7 + 9
2x + 2y + 2z = 22
2(x + y + z) = 22
x + y + z = 22/2
x + y + z = 11
to calculate arithmetic mean:
x + y + z / 3 = 11 / 3 Ans.
Q.13 The two numbers whose sum is-13 and the product is -30 are:
A histogram is an approximate representation of the distribution of numerical data. It was first introduced by Karl Pearson. To construct a histogram, the first step is to "bin" (or "bucket") the range of values—that is, divide the entire range of values into a series of intervals—and then count how many values fall into each interval. The bins are usually specified as consecutive, non-overlapping intervals of a variable. The bins (intervals) must be adjacent and are often (but not required to be) of equal size.
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