Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 92 95 103 99 92 95 103 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System 1089/? = ?/1296 1348 1082 1278 1188 1348 1082 1278 1188 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 1089 x 1296(?)²= (11 x 11 x 9) x (12 x 12 x 9)(?)= 11 x 12 x 9= 1188
Number System 4500 * ? = 3375 3/5 3/4 2/5 1/4 3/5 3/4 2/5 1/4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System 1260 x 1.45 - 888 x 1.75 = ? 367 295 256 273 367 295 256 273 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1260 x 1.45 - 888 x 1.75= 1827 - 1554 = 273
Number System If 2^(2x-1) = 8^(3-x), then the value of x is: 6 5 2 9 6 5 2 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2
Number System The difference between 68% of a number and 35% of the same number is 1216. What is 28% of the number ? 1043.75 1037.75 1031.75 1027.75 1043.75 1037.75 1031.75 1027.75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore 68x / 100 - 35x / 100 = 1216 Therefore x = 1216 x 100 / 33Therefore 28% of x = 28x / 100 = 1216 x 100 / 33 x 28 / 100= 1216 x 100 x 28 / 33 x 1/100 = 1031.75
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