Number System Find the number of factors of 300 excluding 1 and itself. 15 18 14 16 15 18 14 16 ANSWER DOWNLOAD EXAMIANS APP
Number System If the difference between a number and its three fifths is 62, what is the number ? 165 155 175 145 165 155 175 145 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x - 3x/5 = 62or x = 62 x 5/2 = 155
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 485 495 490 480 485 495 490 480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System The average of five consecutive even numbers, p, q, r, s and t is 40. What is the product of 'r' and 's' ? 1480 1580 1780 1680 1480 1580 1780 1680 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 2, x + 4, x + 6, and x + 8Avg = x + x + 2 + x + 4 + x + 6 + x + 8/5 = 40Therefore, 5x + 20 = 200Therefore, x = 180/5 = 36Therefore, r = x + 4 = 40 s = x + 6 = 42Therefore, Product = 1680
Number System What is the sum of the local values of the digits 2, 3, 4, 5 in the number 2345? 5243 2345 2105 2435 5243 2345 2105 2435 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2000 + 300 + 40 + 5 = 2345
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 6460 2360 3260 3360 6460 2360 3260 3360 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
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