Number System Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 36 27 30 18 36 27 30 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
Number System 63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ? 140.587 143.587 142.587 141.587 140.587 143.587 142.587 141.587 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 312.112 - 170.525 = 141.587
Number System If the of a two-digit number are interchanged, the number so obtained is greater than the original number by 18. If the sum of the two digits of the number is 14. What is the original number ? 68 64 62 66 68 64 62 66 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be 10x + y.No. formed by the interchange of digits = 10y + xWe have y - x = 2 .........(i)y + x = 14 .........(ii)Solving (i) and (ii), we get x = 6, and y = 8∴ the no. is 68.
Number System What is the difference between the largest and the smallest number written with 7, 7, 0, 7? 6993 6893 693 6093 6993 6893 693 6093 ANSWER DOWNLOAD EXAMIANS APP
Number System 50% of 8/15 of 9/4 of 5/3 of 333 = ? 333 666 555 444 333 666 555 444 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 556 720 660 515 556 720 660 515 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
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