Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 25/144 144/25 12/5 5/12 25/144 144/25 12/5 5/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System 56.21 +2.36+5.41 —21.4+1.5=? 54.08 64.08 34.08 44.08 54.08 64.08 34.08 44.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
Number System (164 x 175) x ? = 258300 9 2 5 11 9 2 5 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 258300 / 164 x 175 = 9
Number System 75% of 250 - ?% of 380 = 54.5 39 31 33 35 39 31 33 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 250 x 75/100 - 380 x ?/100 = 54.5= 250 x 75 - 380 x ?= 54.5 x 100= 18750 - 380 x ?= 5450= 380 x? = 18750 - 5450= 13300= ? = 13300/380 = 35
Number System On converting the following base-2 numeral in base ten, 1101101, we get 108 106 107 109 108 106 107 109 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 109
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 3/5 1/5 8/5 7/5 3/5 1/5 8/5 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
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