Number System What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 210 234 204 222 210 234 204 222 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Avg = 173 + 192 + 198 + 204 + 211 + 223 + 227/7 = 1428/7 = 204
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 ? 22 18 28 24 22 18 28 24 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 The square root of 3 + “5 is : “5 /2 - 1/”2 “3 /2 - 1/”2 “3 /2 + 1/”2 “(5/2) + “(1/2) “5 /2 - 1/”2 “3 /2 - 1/”2 “3 /2 + 1/”2 “(5/2) + “(1/2) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP “(5/2) + “(1/2)
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? None of these 32 8 27 None of these 32 8 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 96% of a number is 19584. What is 56% of that number ? 11424 11324 11224 11524 11424 11324 11224 11524 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question.96% of x = 19584= x = 1958 x 100/96 = 20400∴ 56% of 20400= 20400 x 56/100= 11424
Number System 106 * 106 - 94 * 94 = ? 2000 1906 2400 1904 2000 1906 2400 1904 ANSWER DOWNLOAD EXAMIANS APP
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