Number System The sum of five consecutive numbers is 190. What is the sum of the largest and the smallest number ? 75 73 74 76 75 73 74 76 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4= 190= 5x + 10 = 190= 5x = 190 - 10 = 180= x = 180/5 = 36The largest number = 36 + 4 = 40∴ Required sum = 36 + 40 = 76
Number System If 70% of an equal to 40% of b, then ratio between a and b is? 4: 7 7: 4 None 7: 11 4: 7 7: 4 None 7: 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 70 a = 40 ba: b = 4: 7
Number System The number of prime factors of (6)10×(7)17×(55)27 41 91 101 61 41 91 101 61 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
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 ? 720 780 660 840 720 780 660 840 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 What is the difference between the largest and the smallest number written with 7, 7, 0, 7? 6893 6993 693 6093 6893 6993 693 6093 ANSWER DOWNLOAD EXAMIANS APP
Number System 35 + 15 * 1.5 = ? 75 57.5 51.5 5.25 75 57.5 51.5 5.25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp. = 35 + 15 * 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5
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