Number System What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ? 5656 7878 4545 3434 5656 7878 4545 3434 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 15, (15 + 2) x 3 = 51,(51 + 3) x 3 = 162, (162 + 4) x 3 = 498, (498 + 5) x 3 = 1509(1509 + 6) x 3 = 4545
Number System 1051.64 - 159.42 - 96.84 + 162.37 - 940.26 + 504 = ? 491.49 511.49 501.49 521.49 491.49 511.49 501.49 521.49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1718.01 - 1196.52 = 521.49
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 16 18 17 15 16 18 17 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System 63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ? 140.587 141.587 143.587 142.587 140.587 141.587 143.587 142.587 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 312.112 - 170.525 = 141.587
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 124 116 112 120 124 116 112 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a + b = 16 Therefore, (a+b)² = (16)² = 256 a² + b² + 2ab = 256Therefore, a² + b² = 256 - 2 x 68Therefore, a² + b² = 256 - 136 = 120
Number System 3√103820 x 3√274620 = ? 3065 3045 3055 3035 3065 3045 3055 3035 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055
EXAMIANS