Number System Sum of two consecutive even terms lacks by 98 from their product. Find the sum of these number 18 32 24 None 18 32 24 None ANSWER DOWNLOAD EXAMIANS APP
Number System What is the value of 8/11 of 5/7 of 96% of 28875 ? 13800 14400 15400 12900 13800 14400 15400 12900 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 8 x 5 x 96 x 28875/11 x 7 x 100 = 14400
Number System The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 289/290 289 290/289 1/289 289/290 289 290/289 1/289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,ab = 17, a = 1 and b = 17So, 1/a2 + 1/b2 = (a2 + b2)/a2 b2 = (12 + 172)/(1 * 17)2 = 290/289
Number System Simplify the 121 * 175 + 363 * 275 328100 None of these 363000 316600 328100 None of these 363000 316600 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 116 124 120 112 116 124 120 112 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
EXAMIANS