Number System Pick the wrong number from the given number series. 3,4,10,33,135,685,4116 685 10 33 135 685 10 33 135 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The correct number is 136.3 x 1 + 1 = 44 x 2 + 2 = 1010 x 3 + 3 = 3333 x 4 + 4 = 136136 x 5 + 5 = 685685 x 6 + 6 = 4116
Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 12/5 144/25 5/12 25/144 12/5 144/25 5/12 25/144 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System If 35% of a number is 899.5, what is 68% of that number ? 1847.6 1747.6 2247.6 1547.6 1847.6 1747.6 2247.6 1547.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System Find the number which multiplied by 15 is increased by 196. 14 20 28 26 14 20 28 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,15x - x = 196x = 14
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 116 120 124 112 116 120 124 112 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
Number System The sum of three consecutive numbers is 87. The greatest among these three number is: 26 29 28 30 26 29 28 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 1 and x + 2 Then,x + (x + 1) + (x + 2) = 873x = 84x = 28Greatest number, (x + 2) = 30.
EXAMIANS