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Number System

Number System
What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3?

43893
43883
70983
43983

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

74330 Largest30347 Smallest-------------43983

Number System
20% of the total number of students in a school play football. How many students do not play football if the total number of students in the school is 7600 ?

5976
6080
6000
5800

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

20% of 7600 = 1520Therefore, students who do not play football = 7600 - 1520 = 6080

Number System
What is 25/2% of 482 times of 183 ?

11025.75
12025.75
12025.50
11050.75

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

25/2% of [482 x 183]= 25/2% of 88206= 25/2 x 88206 / 100= 88206 / 8= 11025.75

Number System
Complete the series : 1, 2, 3, 5, 8, 13 ....

9
1
4
7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

1

Number System
I. 3x2-14x + 8 = 0 II. 2y2 - 1 7 y + 36 = 0

if x >= y
if x > y
if x <= y
if x < y

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

l. 3x2 - 12x - 2x + 8 = 0or 3x(x - 4) -2 (x -4) = 0∴ x = 4, 2/3ll. 2y2 - 8y - 9y + 36 = 0or 2y (y - 4) -9 (y - 4) = 0or (2y - 9) (y - 4) = 0∴ y = 4, 9/2

Number System
The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root?

8
None of these
27
32

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.

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