Number System (12.11)2 + (?)2 = 732.2921 17.2 24.2 14.2 20.2 17.2 24.2 14.2 20.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ? 3289 2476 1760 4589 3289 2476 1760 4589 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E/5 = 42∴ C = 42, ∴ B = 40, ∴ D = 44∴ B x D = 40 x 44 = 1760
Number System I. 3x2-14x + 8 = 0 II. 2y2 - 1 7 y + 36 = 0 if x < y if x >= y if x > y if x <= y if x < y if x >= y if x > y if x <= y ANSWER EXPLANATION DOWNLOAD EXAMIANS APP l. 3x2 - 12x - 2x + 8 = 0or 3x(x - 4) -2 (x -4) = 0∴ x = 4, 2/3ll. 2y2 - 8y - 9y + 36 = 0or 2y (y - 4) -9 (y - 4) = 0or (2y - 9) (y - 4) = 0∴ y = 4, 9/2
Number System If (47)² is added to the square of a number the answer thus obtained is 2290. What is the number ? 8 7 10 9 8 7 10 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, x² + (47)² = 2290Therefore, x² = 2290 - 2209 = 81Therefore, x = 9
Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. 55 30 120 None of these 55 30 120 None of these ANSWER DOWNLOAD EXAMIANS APP
Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 1/3 7/9 5/4 11/13 1/3 7/9 5/4 11/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
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