Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 21 24 27 36 21 24 27 36 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 The difference between two integers is 5. Their product is 500. Find the numbers. 21, 26 20, 25 30, 25 15, 20 21, 26 20, 25 30, 25 15, 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System The difference between a number and its three-fifth is 50. What is the number? 125 None of these 75 100 125 None of these 75 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.
Number System √360 - 225 x 2 + 379 = ? 18 17 19 20 18 17 19 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17
Number System How many numbers up to 100 and 300 are divisible by 11? 21 20 22 18 21 20 22 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
Number System How many words can be made using the letters of the word "BHAG WADGITA" if all the vowels come together and all the consonants come together ? 30160 10160 20160 40160 30160 10160 20160 40160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of words = l2 l4 l7 / l3 l2 = 20160
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