Number System If the sum of four consecutive numbers is 370, which the following is the third lowest number among them 90 91 89 92 90 91 89 92 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four consecutive numbers be x, (x + 1), (x + 2), (x + 3) thenx + (x + 1) + (x + 2) + (x + 3) = 370= 4x + 6 = 370∴ x = 364/4 = 91∴ third lowest number among them = x + 1= 91 + 1 = 92
Number System What is the sum of all the numbers between 300 and 1000 which are divisible by 179? 2517 2607 2527 2506 2517 2607 2527 2506 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 358/179 ….. 895/179179(2 + 3 + 4 + 5) => 2506
Number System Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number? N2 + 1 N(N + 1) N(N + 1)/2 N2 N2 + 1 N(N + 1) N(N + 1)/2 N2 ANSWER DOWNLOAD EXAMIANS APP
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2678 2367 2410 2520 2678 2367 2410 2520 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System The sum of two numbers is 22. Five times one number is equal to 6 times the other. The bigger of the two numbers is: 12 10 15 16 12 10 15 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and (22 - x). Then,5x = 6(22 - x) 11x = 132 => x = 12So, the numbers are 12 and 10.
Number System What is the difference between the largest number and the least number written with the digits 7, 3, 1, 4? 6048 5084 6184 6084 6048 5084 6184 6084 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS