Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 5 7 11 3 5 7 11 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System What is the difference between the local values of 3 in the number 53403? 3003 3030 0 2997 3003 3030 0 2997 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 27 21 36 24 27 21 36 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
Number System 20% of the total number of students in a school play football. How many students do not play football if the total number of students in the school is 7600 ? 6000 5976 6080 5800 6000 5976 6080 5800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 20% of 7600 = 1520Therefore, students who do not play football = 7600 - 1520 = 6080
Number System What will be the next number in the following number series ? 162 182 177 191 162 182 177 191 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
Number System Find the nearest to 25268 which is exactly divisible by 467? 25228 25218 25308 25208 25228 25218 25308 25208 ANSWER DOWNLOAD EXAMIANS APP
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