Number System 7.98 x 3.75 + 1.28 x 15.5 = ? 46.765 49.765 47.765 48.765 46.765 49.765 47.765 48.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
Number System If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is: 18 30 20 15 18 30 20 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,(1/2 x + 1/5 x) - 1/3 x = 22/311/30 x = 22/3x = 20
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 32 None of these 27 8 32 None of these 27 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 In a pair of fractions, fraction A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A? Data inadequate 1/5 2/5 1/25 Data inadequate 1/5 2/5 1/25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A = 2B => B = 1/2 A, so, AB = 2/25 1/2 A2 = 2/25A2 = 4/25 A = 2/5
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 21 42 84 24 21 42 84 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System The square root of 3 + “5 is : “3 /2 + 1/”2 “5 /2 - 1/”2 “(5/2) + “(1/2) “3 /2 - 1/”2 “3 /2 + 1/”2 “5 /2 - 1/”2 “(5/2) + “(1/2) “3 /2 - 1/”2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP “(5/2) + “(1/2)
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