Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 75 76 77 78 75 76 77 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 32 27 8 None of these 32 27 8 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
Number System (2560 x 1.4) +(7400 x 0.6) =? 8024 6543 9160 7234 8024 6543 9160 7234 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 170 164 168 162 170 164 168 162 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 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 ? 5976 5800 6000 6080 5976 5800 6000 6080 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 20% of 7600 = 1520Therefore, students who do not play football = 7600 - 1520 = 6080
Number System The Twenty-First Century will start on January 1 in the year 2100 2000 2001 2101 2100 2000 2001 2101 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2001
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