Number System The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ? 21.84 27.84 25.84 24.84 21.84 27.84 25.84 24.84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84
Number System If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ? 121 111 101 131 121 111 101 131 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore x² + (182)² = 47765Therefore x² = 47765 - (182)2 = 47765 - 33124Therefore x² = 14641, Therefore x = 121
Number System What should come in the place of question mark (?) in the number series given below? 158 157 159 160 158 157 159 160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 160
Number System Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 13 15 9 11 13 15 9 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
Number System What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361 321 11 225 121 321 11 225 121 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is (Prime No.)²So it is (11)² = 121
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