Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 124 163 179 146 124 163 179 146 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x² = 15376Therefore, x² = 15376 x = 124
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 3.5 8 6 None of these 3.5 8 6 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
Number System 384×12×2=? 8465 6123 7487 9216 8465 6123 7487 9216 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
Number System What is the difference between the local values of 3 in the number 53403? 3003 3030 2997 0 3003 3030 2997 0 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System (164 x 175) x ? = 258300 11 5 2 9 11 5 2 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 258300 / 164 x 175 = 9
Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 40 42 39 41 40 42 39 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
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