Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 124 146 179 163 124 146 179 163 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 In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 750 725 640 775 750 725 640 775 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System Which choice provides the answer : If 2 + 3 = 10, 6 + 5 = 66, 7 + 2 = 63, 9 + 7 = 144 then, 8 + 4 = ? 102 114 88 96 102 114 88 96 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 96
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 92 99 95 103 92 99 95 103 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number? 34 78 65 23 34 78 65 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65
Number System 1827÷ 36 x ?=162.4 2.6 1.9 4.3 3.2 2.6 1.9 4.3 3.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3.2
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