Number System Which one of the following represents the sum of the first n even numbers? N2+ 1 N2 N(N – 1) N(N + 1) N2+ 1 N2 N(N – 1) N(N + 1) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
Number System Which choice provides the answer : If 2 + 3 = 10, 6 + 5 = 66, 7 + 2 = 63, 9 + 7 = 144 then, 8 + 4 = ? 102 88 114 96 102 88 114 96 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 96
Number System One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 7 3 5 9 7 3 5 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System 35%of ?=242 394 693 542 487 394 693 542 487 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 693
Number System What is the sum of all the composite numbers up to 20? 132 128 130 131 132 128 130 131 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18 = 132
Number System A number exceeds by 25 from its 3/8 part. Then the number is? 40 35 39 32 40 35 39 32 ANSWER DOWNLOAD EXAMIANS APP