Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 83 84 81 82 83 84 81 82 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System The difference between 71% of a number and 46% and of the same number is 212. What is 75% of that number 845 673 724 636 845 673 724 636 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ 71% of x - 46% of x = 212∴ (71 - 46)% of x = 212∴ 25/100 x x = 212∴ x = 212 x 4 = 848∴ 75% of 848 = 848 x 75/100 = 636
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 164 162 170 168 164 162 170 168 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System 35 + 15 * 1.5 = ? 5.25 51.5 75 57.5 5.25 51.5 75 57.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp. = 35 + 15 * 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5
Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for BAT CAT CAR BED BAT CAT CAR BED ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System 16.23 x 12.9 + 17.32 = ? 246.687 236.687 226.687 None of these 246.687 236.687 226.687 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 16.23 x 12.9 + 17.32= 209.367 + 17.32= 226.687
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