Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 162 245 188 141 162 245 188 141 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162
Number System In a fraction, twice the numerator is two more than the denominator. If 3 is added to the numerator and the denominator each, then the resultant fraction will be 2/3 .What was the original fraction 17/12 11/12 7/12 19/12 17/12 11/12 7/12 19/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System The sum of 8 consecutive odd numbers is 656. Also average of four consecutive even numbers is 87. What is the sum of the smallest odd number and second largest even number ? 160 167 163 158 160 167 163 158 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Average of 8 consecutive odd numbers = 656/8 = 82∴ Fourth number = 82 - 1 = 81∴ First numbers = 75Average of 4 even numbers = 87∴ Second even number = 87 - 1 = 86Second largest even number = 88∴ Required sum = 75 + 88 = 163
Number System A number consists of two digits. If 3/5 of 1/5 of the number is 9. Find the sum of its two digits? 60 8 12 7 60 8 12 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/5 * 1/5 = 9x = 75 => 7 + 5 = 12
Number System Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers? 65, 15 64, 16 60, 20 62, 18 65, 15 64, 16 60, 20 62, 18 ANSWER DOWNLOAD EXAMIANS APP
Number System The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ? 1760 2476 3289 4589 1760 2476 3289 4589 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E/5 = 42∴ C = 42, ∴ B = 40, ∴ D = 44∴ B x D = 40 x 44 = 1760
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