Number System 450% of a number is 4725. What is 82% of that number ? 871 841 861 851 871 841 861 851 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 450/100 = 4725= x = 4725 x 100/450 = 1050∴ 82% of 1050 = 1050 x 82/100= 861
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 36 27 21 24 36 27 21 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.784 8.584 8.684 8.484 8.784 8.584 8.684 8.484 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System √2304 x √? = 2832 3581 3381 3681 3481 3581 3381 3681 3481 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √2304 x √? = 2832= 48 x √? = 2832= √? = 2832/48 = 59∴? = 59 x 59 = 3481
Number System If the numerator of a fraction is decreased by 12.5% and the denominator is increased by 180% the resultant fraction is 1/2. What is the original fraction ? 7/5 1/5 8/5 3/5 7/5 1/5 8/5 3/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the original fraction be x/y.∴ x x 87.5/100/y x 280/100 = 1/2or 87.5x/280y = 1/2∴ 175x = 280y∴ x/y = 280/175 = 8/5
Number System (95.6x 910.3) ÷ 92.56256 = 9? 13.34 14.44 12.24 15.54 13.34 14.44 12.24 15.54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 13.34
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