Number System A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is: 27 30 22 24 27 30 22 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 27
Number System A number exceeds by 25 from its 3/8 part. Then the number is? 40 32 35 39 40 32 35 39 ANSWER DOWNLOAD EXAMIANS APP
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 625 712 920 824 625 712 920 824 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System What is the difference between the local values of 3 in the number 53403? 3003 0 3030 2997 3003 0 3030 2997 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is: 15 18 30 20 15 18 30 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,(1/2 x + 1/5 x) - 1/3 x = 22/311/30 x = 22/3x = 20
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 245 295 275 225 245 295 275 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
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