Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 21 42 24 84 21 42 24 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 13849 14849 12849 11849 13849 14849 12849 11849 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.5 x ?/100 = 4.78 x 1255/100 + 3.24 x 440/100= 59.989 + 14.256∴ ? = 74.245 x 100/0.5 = 14849
Number System What is the sum of all the composite numbers up to 20? 130 131 128 132 130 131 128 132 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18 = 132
Number System (12.11)2 + (?)2 = 732.2921 20.2 14.2 24.2 17.2 20.2 14.2 24.2 17.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System What should come in place of the question mark (?) in the given number series ? 888, 888, 444, 148, ?, 7.4 39 36 38 37 39 36 38 37 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the missing number.Then888/888 = 1,888/444 = 2,444/148 = 3,148/x = 4= x = 148/4 = 37 and 37/7.4 = 5
Number System Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 18 36 30 27 18 36 30 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
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