Number System 450% of a number is 4725. What is 82% of that number ? 871 841 851 861 871 841 851 861 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 450/100 = 4725= x = 4725 x 100/450 = 1050∴ 82% of 1050 = 1050 x 82/100= 861
Number System One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 5 3 9 7 5 3 9 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System ?2704 x ?2209=? 1444 2444 4444 3444 1444 2444 4444 3444 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2444
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: 27 36 30 18 27 36 30 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
Number System The simplest form of 1.5 : 2.5 is : 5 : 7 3 : 5 17 : 19 13 : 11 5 : 7 3 : 5 17 : 19 13 : 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 188 141 162 245 188 141 162 245 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162
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