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Number System

Number System
(√6 + 1)² = ? + 2√6

7
5
8
6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7

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

43983
43883
70983
43893

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
What is the difference between the local value of 7 and 5 in the number 2574?

403
430
413
570

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

500 – 70 = 430

Number System
63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ?

143.587
141.587
140.587
142.587

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 312.112 - 170.525 = 141.587

Number System
What should be the least number to be added to the 51234 number to make it divisible by 9?

3
4
5
6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The least number to be added to the numbers to make them divisible by 9 is equal to the difference of the least multiple of 9 greater than the sum of the digits and sum of the digits.Sum of digits = 15.Nearest multiple of 9 greater than sum of digits = 18.Hence 3 has to be added.

Number System
What number should replace both the question marks (?) in the following question ?

82
83
85
84

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

84

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