Number System 64% of 2650+40% 0f 320=? 2096 1824 1578 1247 2096 1824 1578 1247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 225 295 275 245 225 295 275 245 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
Number System The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 82.5 84.5 85.5 83.5 82.5 84.5 85.5 83.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
Number System The product of two successive numbers is 4556. Which of the following is the larger of the two numbers? 68 67 63 78 68 67 63 78 ANSWER DOWNLOAD EXAMIANS APP
Number System 4550 ÷ 25% of ? = 130 135 125 130 140 135 125 130 140 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4550 ÷ ? x 25/100 = 130= 4550 ÷ ?/4 = 130= 4550 x 4/? = 130= ? x 130 = 4550 x 4= ? = 4550 x 4/130 = 140
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 4 None 2 6 4 None 2 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
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