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Number System

Number System
(√6 + 1)² = ? + 2√6

8
7
5
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
The number of prime factors of (6)10×(7)17×(55)27

41
61
91
101

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

91

Number System
(2560 x 1.4) +(7400 x 0.6) =?

7234
8024
9160
6543

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8024

Number System
On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will be the remainder?

0
1
3
2

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number = 269 * 68 + 0 = 1829267) 18292 (273       18291         --------                1Required number = 1.

Number System
The average of five consecutive even numbers A, B, C, D and E is 54. What is the product of'B' and 'E' ?

2871
1456
4098
3016

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Because, The even numbers are consecutive and their average is 54.∴ The number C will be 54.∴ A = 50, B = 52, D = 56, E = 58B x E = 52 x 58 = 3016

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

4
5
3
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.

MORE MCQ ON Number System

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