Number System The difference between two integers is 5. Their product is 500. Find the numbers. 15, 20 20, 25 30, 25 21, 26 15, 20 20, 25 30, 25 21, 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System (12.11)2 + (?)2 = 732.2921 24.2 17.2 14.2 20.2 24.2 17.2 14.2 20.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System The average of 7 consecutive even numbers A, B, C, D, E, F and G is 36. What is the product of ' C and 'E' ? 1292 1327 1168 1468 1292 1327 1168 1468 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E + F + G/7 = 36Therefore, D = 36Therefore, C = 34, E = 38Therefore, Product = 34 x 38 = 1292
Number System 2536+4851—?=3450+313 6784 4567 5243 3624 6784 4567 5243 3624 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
Number System If 35% of a number is 899.5, what is 68% of that number ? 2247.6 1547.6 1847.6 1747.6 2247.6 1547.6 1847.6 1747.6 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 432+2170+35=? 678 523 729 494 678 523 729 494 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 494
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