Number System Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers? 65, 15 62, 18 60, 20 64, 16 65, 15 62, 18 60, 20 64, 16 ANSWER DOWNLOAD EXAMIANS APP
Number System The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 290/289 289 1/289 289/290 290/289 289 1/289 289/290 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 √360 - 225 x 2 + 379 = ? 17 18 19 20 17 18 19 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17
Number System In a fraction, twice the numerator is two more than the denominator. If 3 is added to the numerator and the denominator each, then the resultant fraction will be 2/3 .What was the original fraction 7/12 17/12 19/12 11/12 7/12 17/12 19/12 11/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System What number should replace both the question marks (?) in the following question ? 85 82 83 84 85 82 83 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 84
Number System Pick the wrong number from the given number series. 3,4,10,33,135,685,4116 135 33 685 10 135 33 685 10 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
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