Number System If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is: 15 18 30 20 15 18 30 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,(1/2 x + 1/5 x) - 1/3 x = 22/311/30 x = 22/3x = 20
Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 47 48 49 50 47 48 49 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
Number System 486+32×25—59=? 528 582 567 596 528 582 567 596 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
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 72 48 54 84 72 48 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 1051.64 - 159.42 - 96.84 + 162.37 - 940.26 + 504 = ? 511.49 521.49 501.49 491.49 511.49 521.49 501.49 491.49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1718.01 - 1196.52 = 521.49
Number System In how many different ways can the letters of the word FORMULATE be arranged ? 362880 392880 372880 382880 362880 392880 372880 382880 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of letters = 9! = 9*8*7*6*5*4*3*2*1 = 362880
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