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Number System

Number System
Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number?

65
34
78
23

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

65

Number System
The difference between a two-digit number and the number obtained by interchanging the two digits is 63. Which is the smaller of the two numbers?

Cannot be determined
29
70
92

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the ten's digit be x and units digit by y.Then,(10x + y) - (10y + x) = 639(x - y) = 63x - y = 7Thus, none of the numbers can be determined.

Number System
How many figures are required to number the pages the pages of a book containing 365 pages?

987
967
977
897

ANSWER DOWNLOAD EXAMIANS APP

Number System
The sum of the digits of a two digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, then what will be the original number?

39
49
69
59

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

39

Number System
(12)² - (4.4)² - (0.04)² = ?

131.6384
129.6384
125.6384
124.6384

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384

Number System
{3√4913}² = ?

289
333
225
121

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = (3√4913)² = (17)² = 289

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