Number System {3√4913}² = ? 289 225 121 333 289 225 121 333 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System Four-fifth of a number is 10 more than two-third of the same number. What is the number? 35 75 89 91 35 75 89 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 2893 2883 3892 6489 2893 2883 3892 6489 ANSWER DOWNLOAD EXAMIANS APP
Number System (1024—263—233)÷(986—764— 156) =? 8 None of these 10 6 8 None of these 10 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System The cost of 87 pens and 29 pencils is `783. What is the cost of 90 pens and 30 pencils ? Rs. 820 Rs. 810 Rs. 800 Rs. 830 Rs. 820 Rs. 810 Rs. 800 Rs. 830 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the price of a pen be 'x' and that of pencil be 'y' Then 87x + 29y = 783Multiplying eqn (i) by 30/29 we get (87x) x 30/29 + (29y) 30/29 = 783 x 30/29∴ 90x + 30y = 810
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
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