Number System What should come in place of question mark (?)? 8 : 1 1 : : 72: 99 89 79 109 99 89 79 109 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99
Number System What is the sum of all even numbers from 1 to 701? 122850 123850 122550 122500 122850 123850 122550 122500 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 3 7 5 11 3 7 5 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System 7.98 x 3.75 + 1.28 x 15.5 = ? 48.765 47.765 49.765 46.765 48.765 47.765 49.765 46.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2520 2367 2678 2410 2520 2367 2678 2410 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System What is 846 times 323 ? 264258 273258 283298 293798 264258 273258 283298 293798 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
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