Number System What should come in place of question mark (?)? 8 : 1 1 : : 72: 109 99 79 89 109 99 79 89 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99
Number System Let R = qs—4. When s=8, R=16. When s=10, R is equal to 21 22 20 23 21 22 20 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 120 116 112 124 120 116 112 124 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 68375 + 72848 - ? = 34346 + 49569 57308 59308 None of these 58308 57308 59308 None of these 58308 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
Number System How many numbers up to 100 are divisible by 7? 14 93 107 100 14 93 107 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 100/7 = 14 2/7 => 14 Numbers
Number System What is the value of 8/11 of 5/7 of 96% of 28875 ? 14400 12900 15400 13800 14400 12900 15400 13800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 8 x 5 x 96 x 28875/11 x 7 x 100 = 14400
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