Number System If the product of two successive positive integers is 4692, what is the smaller number ? 70 68 66 64 70 68 66 64 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 68 x 69 = 4692
Number System In how many different ways can the letters of the word TEST' be arranged ? 12 10 16 8 12 10 16 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12
Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 7745 5183 6782 8795 7745 5183 6782 8795 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System If the difference between a number and its 2/5 is 240, find the number. 400 440 480 360 400 440 480 360 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore x - 2x/5 = 240, Therefore, 3x/5 = 240Therefore, x = 240x5/3 = 400
Number System The sum of the numbers is 264. If the first number be twice the second and third number be one-third of the first, then the second number is: 54 84 48 72 54 84 48 72 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the second number be x. Then, first number = 2x and third number = 2x/3.2x + x + 2x/3 = 26411x/3 = 264x = 72
Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 180 160 240 140 180 160 240 140 ANSWER DOWNLOAD EXAMIANS APP
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