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 √207.36 = ? 14.4 15.7 12.3 16.7 14.4 15.7 12.3 16.7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
Number System The digit in unit's place of a three digit number is thrice the digit in ten's place & the digit in hundred's place is two-third of the digit in ten's place. If the sum of three digits of number is 14 211 221 239 215 211 221 239 215 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x.∴ Unit's digit = 3xHundered's digit = 2x/3∴ x + 3x + 2x/3 = 14= 3x + 9x + 2x = 14 x 3= 14x = 14 x 3= x = 3∴ Number = 239
Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 41 39 42 40 41 39 42 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System 64% of 2650+40% 0f 320=? 1824 2096 1247 1578 1824 2096 1247 1578 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System 74698 + 365 + 85213 + 95 = ? 160351 160361 160341 160371 160351 160361 160341 160371 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 74698 + 365 + 85213 + 95 = 160371
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