Number System If 5/7 of a number is 145, what is 180% of that number ? 365.4 375.4 345.4 355.4 365.4 375.4 345.4 355.4 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 The square root of 0.0081 is: 0.91 0.09 0.009 0.9 0.91 0.09 0.009 0.9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.09
Number System What is the value of ? in the following equations ? 72/? = ?/50 60 80 100 40 60 80 100 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System If (47)² is added to the square of a number the answer thus obtained is 2290. What is the number ? 9 10 7 8 9 10 7 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, x² + (47)² = 2290Therefore, x² = 2290 - 2209 = 81Therefore, x = 9
Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 5/12 144/25 12/5 25/144 5/12 144/25 12/5 25/144 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System 486+32×25—59=? 582 528 567 596 582 528 567 596 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
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