Number System What least number shall be added to 4700 to make it a perfect square ? 61 71 81 91 61 71 81 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.
Number System 4500 * ? = 3375 3/4 1/4 2/5 3/5 3/4 1/4 2/5 3/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 120 160 90 60 120 160 90 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.784 8.584 8.484 8.684 8.784 8.584 8.484 8.684 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System If the of a two-digit number are interchanged, the number so obtained is greater than the original number by 18. If the sum of the two digits of the number is 14. What is the original number ? 62 68 66 64 62 68 66 64 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be 10x + y.No. formed by the interchange of digits = 10y + xWe have y - x = 2 .........(i)y + x = 14 .........(ii)Solving (i) and (ii), we get x = 6, and y = 8∴ the no. is 68.
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 21 28 12 18 21 28 12 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
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