Number System The difference between 35% of a number and 18% of the same number is 93.5 then what is the 40% of that number ? 225 245 232 220 225 245 232 220 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Diff = (35 - 18)% of x = 93.517x/100 = 93.5Therefore, x = 550Therefore, 40% of 550 = 220
Number System The difference between a two-digit number and the number obtained by interchanging the two digits is 63. Which is the smaller of the two numbers? 92 29 Cannot be determined 70 92 29 Cannot be determined 70 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x and units digit by y.Then,(10x + y) - (10y + x) = 639(x - y) = 63x - y = 7Thus, none of the numbers can be determined.
Number System Two third of three- fifth of one fourth of a number is 24, what is 30% of that number? 72 42 90 69 72 42 90 69 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72
Number System The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: None of these 40 20 30 None of these 40 20 30 ANSWER DOWNLOAD EXAMIANS APP
Number System What least number should be added to 8602 to make it a perfect square ? 51 47 41 36 51 47 41 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
Number System Which is the largest fraction among the following ? 21/23 24/25 21/22 12/13 21/23 24/25 21/22 12/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21/23 = 0.913,12/13 = 0.92323/25 = 0.92, 21/22 = 0.9545, 24/25 = 0.96
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