Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 146 124 163 179 146 124 163 179 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 ind the number, difference between number and its 3/5 is 50 125 120 123 124 125 120 123 124 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number = x,Then, x-(3/5)x = 50,=> (2/5)x = 50 => 2x = 50*5,=> x = 125
Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 7745 8795 5183 6782 7745 8795 5183 6782 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 54.7 42.6 45 42.1 54.7 42.6 45 42.1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 75 64 54 88 75 64 54 88 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System 68375 + 72848 - ? = 34346 + 49569 58308 59308 None of these 57308 58308 59308 None of these 57308 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
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