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Number System

Number System
The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is:

20
30
40
None of these

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Number System
In how many different ways can the letters of the word ANATOMY be arranged ?

2510
2508
2504
2520

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520

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

78
63
67
68

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Number System
If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is:

20
15
30
18

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x. Then,(1/2 x + 1/5 x) - 1/3 x = 22/311/30 x = 22/3x = 20

Number System
Find the nearest to 25268 which is exactly divisible by 467?

25228
25208
25308
25218

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Number System
If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ?

101
131
121
111

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be xTherefore x² + (182)² = 47765Therefore x² = 47765 - (182)2                        = 47765 - 33124Therefore x² = 14641,                Therefore x = 121

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