Number System 4500 * ? = 3375 3/4 1/4 3/5 2/5 3/4 1/4 3/5 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System If 35% of a number is 899.5, what is 68% of that number ? 1847.6 1547.6 2247.6 1747.6 1847.6 1547.6 2247.6 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 What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ? 5656 4545 3434 7878 5656 4545 3434 7878 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 15, (15 + 2) x 3 = 51,(51 + 3) x 3 = 162, (162 + 4) x 3 = 498, (498 + 5) x 3 = 1509(1509 + 6) x 3 = 4545
Number System The product of two consecutive odd numbers is 4095 What is the greater number ? 69 61 65 74 69 61 65 74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the two consecutive odd numbers be 2x - 1 and 2x + 1.(2x - 1) (2x - 1) = 4095= 4x² - 1 = 4095= 4x² = 4096= x² = 1024∴ x = 32∴ The numbers are 63 and 65.Greater number = 65
Number System Find the least value of 3x + 4y if x2y3 = 6. 10 3 6 7 10 3 6 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System √343 = ? 20 18 19 21 20 18 19 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18
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