Number System ind the number, difference between number and its 3/5 is 50 124 120 125 123 124 120 125 123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number = x,Then, x-(3/5)x = 50,=> (2/5)x = 50 => 2x = 50*5,=> x = 125
Number System 1256+4813+765=? 6834 6836 6839 6831 6834 6836 6839 6831 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1256+4813+765= 6069+765=6834
Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 7745 8795 5183 6782 7745 8795 5183 6782 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System What is the sum of all the prime numbers from 20 to 40? 119 120 117 118 119 120 117 118 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System The difference between a two-digit number and the number obtained by interchanging its two digits is 45. The sum of the digit of the number is 9. What is the product of the two digits of the number? 13 12 15 14 13 12 15 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.Therefore, x + y = 9 ..................(i)10x + y - (10y + x) = 4510x + y - 10y - x = 45Therefore, x - y = 5 ..................(ii)From (i) and (ii), x = 7, y = 2Number = 72Therefore, = x x y = 7 x 2 = 14
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