Number System Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be? 7, 8 9, 6 10, 5 6, 9 7, 8 9, 6 10, 5 6, 9 ANSWER DOWNLOAD EXAMIANS APP
Number System If 2^(2x-1) = 8^(3-x), then the value of x is: 2 5 6 9 2 5 6 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 11 5 7 3 11 5 7 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 43883 43893 43983 70983 43883 43893 43983 70983 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
Number System A number consists of two digits. If 3/5 of 1/5 of the number is 9. Find the sum of its two digits? 12 7 8 60 12 7 8 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/5 * 1/5 = 9x = 75 => 7 + 5 = 12
Number System If the difference between a number and its 2/5 is 240, find the number. 440 360 480 400 440 360 480 400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore x - 2x/5 = 240, Therefore, 3x/5 = 240Therefore, x = 240x5/3 = 400
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