Number System If the sum of four consecutive numbers is 370, which the following is the third lowest number among them 92 90 89 91 92 90 89 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four consecutive numbers be x, (x + 1), (x + 2), (x + 3) thenx + (x + 1) + (x + 2) + (x + 3) = 370= 4x + 6 = 370∴ x = 364/4 = 91∴ third lowest number among them = x + 1= 91 + 1 = 92
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 ? 66 64 62 68 66 64 62 68 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 : 2, 6, 12, 20, 30 ... 56 40 41 42 39 40 41 42 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 99 97 103 101 99 97 103 101 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 - 732 = 5280 x2 = 5280 + (70+3)2 = 5280 + 4900 + 420 + 9 = 10609= 10000 + 2(100)(3) + 32 = (100 + 3)2x = 100 + 3 = 103.
Number System 6.4 x 8.5 x 25/3.2 x 12.5 = ? 3.4 4.5 5.6 2.3 3.4 4.5 5.6 2.3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 6.4 x 8.5 x 2.5/3.2 x 12.5 = 3.4
Number System What is the sum of all even numbers from 1 to 701? 122850 122500 123850 122550 122850 122500 123850 122550 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
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