Number System The sum of three consecutive numbers is 87. The greatest among these three number is: 30 29 28 26 30 29 28 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 1 and x + 2 Then,x + (x + 1) + (x + 2) = 873x = 84x = 28Greatest number, (x + 2) = 30.
Number System √9216 + √15376 = ? 224 231 227 220 224 231 227 220 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √9216 + √15376= 96 + 124= 220
Number System A canteen requires 17 dozen of eggs per week. How many eggs will it require from January 1 to February 11 ? 820 1224 525 987 820 1224 525 987 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of days from Jan 1 to Feb 11th= 31 + 11 = 42 days = 6 weeks∴ Total eggs =17 x 12 x 6 = 1224
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 6 None 2 4 6 None 2 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? None of these 8 3.5 6 None of these 8 3.5 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
Number System If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is: 77/73 73/77 83/77 93/77 77/73 73/77 83/77 93/77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 73/77
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