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Number System

Number System
If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for

BAT
CAT
CAR
BED

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

BED

Number System
The product of two successive numbers is 4556. Which of the following is the larger of the two numbers?

68
67
78
63

ANSWER DOWNLOAD EXAMIANS APP

Number System
√360 - 225 x 2 + 379 = ?

17
18
20
19

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17

Number System
If x + y = 61 and xy = 888, What is the value of x²+ y² ?

1945
1965
1975
1955

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Because (x + y)²  = x² + y² + 2xy∴ x² + y² = (x + y)² - 2xy∴ x² + y² = (61)² - 2 x 888= 3721 - 1776 = 1945

Number System
83250÷?=74×25

38
59
21
45

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

45

Number System
The sum of two numbers is 22. Five times one number is equal to 6 times the other. The bigger of the two numbers is:

16
10
15
12

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the numbers be x and (22 - x). Then,5x = 6(22 - x) 11x = 132 => x = 12So, the numbers are 12 and 10.

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