Number System What is the difference between the local value of 7 and 5 in the number 2574? 413 430 570 403 413 430 570 403 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
Number System If 5/7 of a number is 145, what is 180% of that number ? 365.4 355.4 345.4 375.4 365.4 355.4 345.4 375.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System 7.8% of 12.5 + 2.5% of 161 = ? 2 9 5 12 2 9 5 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
Number System Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 22 1/2 40 30 45 22 1/2 40 30 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System If one-third of one fourth of a number is 15, then three-tenth of that number is: 35 45 54 25 35 45 54 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,1/3 of 1/4 of x = 15x = 15 * 12 = 180So, required number = (3/10 * 180) = 54.
Number System If the numerator of a fraction is increased by 200% and the denominator by 300%, the fraction thus obtained is 1/36. What is the original fractions ? 3/9 4/9 5/9 6/9 3/9 4/9 5/9 6/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fractions be x/yx + 200% of x/y + 300% of y = 1/3= x + 2x/y + 3y = 1/3= 3x/4y = 1/3Hence x/y = 4/9
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