Number System What is the sum of all the prime numbers from 20 to 40? 119 120 118 117 119 120 118 117 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for BED CAR CAT BAT BED CAR CAT BAT ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 171 169 168 170 171 169 168 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System What will be the next number in the following number series ? 177 162 182 191 177 162 182 191 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
Number System (12.11)2 + (?)2 = 732.2921 17.2 20.2 24.2 14.2 17.2 20.2 24.2 14.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 8 32 None of these 27 8 32 None of these 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
EXAMIANS