Number System What should come in the place of ' ? ' in the following number series ? 2, 5, 9, 19, 37, ? 76 77 78 75 76 77 78 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2 x 2 + 1 = 5;5 x 2 - 1 = 99 x 2 + 1 = 19: 19 x 2 - 1 = 3737 x 2 + 1 = 75
Number System What is 846 times 323 ? 293798 283298 273258 264258 293798 283298 273258 264258 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
Number System 68375 + 72848 - ? = 34346 + 49569 None of these 57308 58308 59308 None of these 57308 58308 59308 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
Number System 36% of 850+? % of 592 = 750 75 12.5 25 50 75 12.5 25 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 289/290 1/289 289 290/289 289/290 1/289 289 290/289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,ab = 17, a = 1 and b = 17So, 1/a2 + 1/b2 = (a2 + b2)/a2 b2 = (12 + 172)/(1 * 17)2 = 290/289
Number System If a number is subtracted from its square we get 272. Find the number? 14 17 24 22 14 17 24 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
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