Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 8 6 3.5 None of these 8 6 3.5 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
Number System (1024—263—233)÷(986—764— 156) =? 10 6 8 None of these 10 6 8 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 824 712 920 625 824 712 920 625 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System 728.038 x 54.978 - 72.016 x 85.250 = ? 53900 43900 33900 23900 53900 43900 33900 23900 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 728 x 55 - 72 x 85.25 = 40040 - 6138 = 339900
Number System What is the difference between the local values of 3 in the number 53403? 3030 3003 0 2997 3030 3003 0 2997 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 18 21 12 28 18 21 12 28 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
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