Number System Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number? 34 65 23 78 34 65 23 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65
Number System If the difference between a number and its 2/5 is 240, find the number. 440 400 480 360 440 400 480 360 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore x - 2x/5 = 240, Therefore, 3x/5 = 240Therefore, x = 240x5/3 = 400
Number System What is the difference between the local value of 7 and 5 in the number 2574? 570 413 403 430 570 413 403 430 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 84 21 42 24 84 21 42 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number ? Rs. 945 Rs. 926 Rs. 986 Rs. 1054 Rs. 945 Rs. 926 Rs. 986 Rs. 1054 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.78% of x - 59% of x = 323= 78x - 59x/100 = 323= 19x/100 = 323∴ x = 323 x 100/19 = 1700= 62% of 1700 = 1700 x 62/100 = 1054
Number System The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 289 1/289 289/290 290/289 289 1/289 289/290 290/289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,ab = 17, a = 1 and b = 17So, 1/a2 + 1/b2 = (a2 + b2)/a2 b2 = (12 + 172)/(1 * 17)2 = 290/289
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