Number System 3√68921 = ? 21 31 51 41 21 31 51 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System What is the least number that should be added to 5200 to make it a perfect square ? 225 129 275 288 225 129 275 288 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP We sec (73)² = 5329 and (72)² = 5184ie 5329 > 5200 > 5184So 129 should be added to make is perfect square.
Number System If the sum of five consecutive even numbers A, B, C, D and E is 130, what is the product of A and E ? 660 840 780 720 660 840 780 720 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the consecutive even numbers be A = 2x, B = 2x + 2, C = 2x + 4, D = 2x + 6 and E = 2x + 8= A + B + C + D + E = 130= 10x + 20 = 130∴ x = 130 - 20/10 = 11Therefore, product of A and E= 22 x 30 = 660
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 42 21 84 24 42 21 84 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System The simplest form of 1.5 : 2.5 is : 3 : 5 13 : 11 17 : 19 5 : 7 3 : 5 13 : 11 17 : 19 5 : 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
Number System What should come in the place of question mark (?) in the number series given below? 160 159 158 157 160 159 158 157 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 160
EXAMIANS