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 ? 840 720 780 660 840 720 780 660 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 The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 169 170 168 171 169 170 168 171 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System If one third of 3/4 of a number is 21. Then find the number? 63 630 84 840 63 630 84 840 ANSWER DOWNLOAD EXAMIANS APP
Number System If 35% of a number is 899.5, what is 68% of that number ? 1547.6 1747.6 1847.6 2247.6 1547.6 1747.6 1847.6 2247.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 42.6 42.1 54.7 45 42.6 42.1 54.7 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
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