Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 112 116 124 120 112 116 124 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a + b = 16 Therefore, (a+b)² = (16)² = 256 a² + b² + 2ab = 256Therefore, a² + b² = 256 - 2 x 68Therefore, a² + b² = 256 - 136 = 120
Number System If one third of 3/4 of a number is 21. Then find the number? 63 84 630 840 63 84 630 840 ANSWER DOWNLOAD EXAMIANS APP
Number System What should come in place of (?) in the following series ? 10, 19, 30, 43, 58, ? 75 78 77 76 75 78 77 76 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is: +9, +11, +13, +15, +17
Number System A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? 11 1 13 9 11 1 13 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 45 + 31 = 76/15 = 1 (Remainder)
Number System What is the sum of all the numbers between 300 and 1000 which are divisible by 179? 2527 2517 2607 2506 2527 2517 2607 2506 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 358/179 ….. 895/179179(2 + 3 + 4 + 5) => 2506
Number System 486+32×25—59=? 567 582 528 596 567 582 528 596 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
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