Number System In a pair of fractions, fraction A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A? Data inadequate 1/5 1/25 2/5 Data inadequate 1/5 1/25 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A = 2B => B = 1/2 A, so, AB = 2/25 1/2 A2 = 2/25A2 = 4/25 A = 2/5
Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 124 163 146 179 124 163 146 179 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x² = 15376Therefore, x² = 15376 x = 124
Number System 50% of 8/15 of 9/4 of 5/3 of 333 = ? 333 666 444 555 333 666 444 555 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 9 3 7 2 9 3 7 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System If 5/7 of a number is 145, what is 180% of that number ? 365.4 355.4 345.4 375.4 365.4 355.4 345.4 375.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System 20% of the total number of students in a school play football. How many students do not play football if the total number of students in the school is 7600 ? 5800 6080 6000 5976 5800 6080 6000 5976 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 20% of 7600 = 1520Therefore, students who do not play football = 7600 - 1520 = 6080
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