Number System What is the sum of all the prime numbers from 20 to 40? 119 117 118 120 119 117 118 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System What is the difference between the largest and the smallest number written with 7, 7, 0, 7? 6093 6893 6993 693 6093 6893 6993 693 ANSWER DOWNLOAD EXAMIANS APP
Number System How many numbers up to 100 and 300 are divisible by 11? 18 20 22 21 18 20 22 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9565 9974 None of these 9125 9565 9974 None of these 9125 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Since the difference between the divisors and the respective remainders is not constant, back substitution is the convenient method. None of the given numbers is satisfying the condition.
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 24 36 27 21 24 36 27 21 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 384×12×2=? 9216 7487 6123 8465 9216 7487 6123 8465 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
EXAMIANS