Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 5183 8795 6782 7745 5183 8795 6782 7745 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference of the two digits of the number ? 1 3 2 4 1 3 2 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) - (10y + x) = 36,9(x - y) = 36/9 = 4
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 42.6 54.7 45 42.1 42.6 54.7 45 42.1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 252 296 344 388 252 296 344 388 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four numbers be x, x + 2, x + 4 and x + 6.=> x + x + 2 + x + 4 + x + 6 = 36=> 4x + 12 = 36 => x = 6The numbers are 6, 8, 10 and 12.Sum of their squares = 62 + 82 + 102 + 122 = 36 + 64 + 100 + 144 = 344.
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 168 170 171 169 168 170 171 169 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System The sum of two numbers is 22. Five times one number is equal to 6 times the other. The bigger of the two numbers is: 15 10 16 12 15 10 16 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and (22 - x). Then,5x = 6(22 - x) 11x = 132 => x = 12So, the numbers are 12 and 10.
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