Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 50 49 47 48 50 49 47 48 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
Number System What least number should be added to 8602 to make it a perfect square ? 36 51 47 41 36 51 47 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
Number System Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 13 9 11 15 13 9 11 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
Number System If 2^(2x-1) = 8^(3-x), then the value of x is: 9 6 2 5 9 6 2 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2
Number System 8988 / 8 / 4 = ? 4494 280.875 561.75 2247 4494 280.875 561.75 2247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
Number System The product of two successive numbers is 4556. Which of the following is the larger of the two numbers? 78 67 63 68 78 67 63 68 ANSWER DOWNLOAD EXAMIANS APP
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