Number System 4500 * ? = 3375 3/4 1/4 2/5 3/5 3/4 1/4 2/5 3/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 712 625 920 824 712 625 920 824 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System What is the sum of the local values of the digits 2, 3, 4, 5 in the number 2345? 2345 5243 2435 2105 2345 5243 2435 2105 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2000 + 300 + 40 + 5 = 2345
Number System 1256+4813+765=? 6836 6831 6834 6839 6836 6831 6834 6839 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1256+4813+765= 6069+765=6834
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 60 260 120 180 60 260 120 180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
Number System 1260 x 1.45 - 888 x 1.75 = ? 273 295 367 256 273 295 367 256 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1260 x 1.45 - 888 x 1.75= 1827 - 1554 = 273
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