Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 8 27 32 None of these 8 27 32 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
Number System What is the sum of all the numbers between 300 and 1000 which are divisible by 179? 2607 2517 2527 2506 2607 2517 2527 2506 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 358/179 ….. 895/179179(2 + 3 + 4 + 5) => 2506
Number System What will be the next number in the following number series ? 182 191 162 177 182 191 162 177 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 5 11 7 3 5 11 7 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 21 28 12 18 21 28 12 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 556 660 515 720 556 660 515 720 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
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