Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 6 8 3.5 None of these 6 8 3.5 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 75 88 64 54 75 88 64 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 15 11 17 13 15 11 17 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 ?125÷5x ?=6265 124 1452 153 1253 124 1452 153 1253 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1253
Number System 1827÷ 36 x ?=162.4 2.6 4.3 3.2 1.9 2.6 4.3 3.2 1.9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3.2
Number System What is the least number, which is perfect square but contains 2700 as its factor? 2700 10800 1800 5400 2700 10800 1800 5400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
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