Number System Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number 5 15 7.5 4 5 15 7.5 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5
Number System Find the least number with which 16200 should be multiplied, to make it a perfect cube. 45 36 48 360 45 36 48 360 ANSWER DOWNLOAD EXAMIANS APP
Number System If the numerator of a fraction is increased by 200% and the denominator by 300%, the fraction thus obtained is 1/36. What is the original fractions ? 3/9 6/9 5/9 4/9 3/9 6/9 5/9 4/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fractions be x/yx + 200% of x/y + 300% of y = 1/3= x + 2x/y + 3y = 1/3= 3x/4y = 1/3Hence x/y = 4/9
Number System Complete the series : 81, 69, 58, 48, 39 ........ 29 28 31 30 29 28 31 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 31
Number System What should come in place of (?) in the following series ? 10, 19, 30, 43, 58, ? 76 78 77 75 76 78 77 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is: +9, +11, +13, +15, +17
Number System 7589 - ? = 3434 11023 4242 1123 4155 11023 4242 1123 4155 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 7589 - x = 3434Then x = 7589 - 3434 = 4155
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