Number System (√6 + 1)² = ? + 2√6 8 5 7 6 8 5 7 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 In a two-digit number, the digit in unit's place is two more than three times the digit in ten's place. If the sum of the two digits is 10, what is the number ? 18 24 22 28 18 24 22 28 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ y = 3x + 2 .......(i)And, x + y = 10 ......(ii)From (i) and (ii), x = 2, y = 8∴ Number = 28
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 3360 2360 6460 3260 3360 2360 6460 3260 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
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? 70 92 29 Cannot be determined 70 92 29 Cannot be determined 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 (4300731) - ? = 2535618 1775123 1765113 1865113 1675123 1775123 1765113 1865113 1675123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4300731 - x = 2535618Then, x = 4300731 - 2535618 = 1765113
Number System (2560 x 1.4) +(7400 x 0.6) =? 8024 9160 6543 7234 8024 9160 6543 7234 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
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