Number System (4.6 x 2.8 x 5.5) - (3.2 x 4.5 x 2.8) = ? 30.52 27.54 29.81 28.56 30.52 27.54 29.81 28.56 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (4.6 x 2.8 x 5.5) - (3.2 x 4.5 x 2.8) = 70.84 - 40.32 = 30.52
Number System How many numbers up to 200 are divisible by 2 and 3 both? 29 33 27 35 29 33 27 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 200/6 = 33 2/6 => 33 Numbers
Number System What is the difference between the largest number and the least number written with the digits 7, 3, 1, 4? 6184 6048 5084 6084 6184 6048 5084 6084 ANSWER DOWNLOAD EXAMIANS APP
Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 17 15 11 13 17 15 11 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
Number System {(742)² ÷ 36} ÷ 2 = ? 422.5 420.5 423.5 421.5 422.5 420.5 423.5 421.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
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 ? 158 163 167 160 158 163 167 160 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
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