Number System How many numbers up to 100 and 300 are divisible by 11? 22 18 21 20 22 18 21 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 44 45 47 46 44 45 47 46 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System ?125÷5x ?=6265 153 1253 124 1452 153 1253 124 1452 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1253
Number System If 70% of an equal to 40% of b, then ratio between a and b is? None 7: 4 4: 7 7: 11 None 7: 4 4: 7 7: 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 70 a = 40 ba: b = 4: 7
Number System If the difference between a number and its three-fourth is 18, find the number. 61 57 68 72 61 57 68 72 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x - 3x/4 = 18= x/4 = 18= x = 4 x 18 = 72
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 81 82 83 84 81 82 83 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
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