Number System 3√103820 x 3√274620 = ? 3055 3065 3045 3035 3055 3065 3045 3035 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055
Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 78 75 76 77 78 75 76 77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System ?2704 x ?2209=? 4444 3444 2444 1444 4444 3444 2444 1444 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2444
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 65 45 55 35 65 45 55 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System √2304 x √? = 2832 3581 3381 3481 3681 3581 3381 3481 3681 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √2304 x √? = 2832= 48 x √? = 2832= √? = 2832/48 = 59∴? = 59 x 59 = 3481
Number System The difference between 68% of a number and 35% of the same number is 1216. What is 28% of the number ? 1037.75 1031.75 1027.75 1043.75 1037.75 1031.75 1027.75 1043.75 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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