Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 3 7 11 5 3 7 11 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 3360 2360 3260 6460 3360 2360 3260 6460 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
Number System Complete the series : 81, 69, 58, 48, 39 ........ 31 29 28 30 31 29 28 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 31
Number System What is the value of 8/11 of 5/7 of 96% of 28875 ? 12900 14400 15400 13800 12900 14400 15400 13800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 8 x 5 x 96 x 28875/11 x 7 x 100 = 14400
Number System A bag contains eighteen 25-paise coins, seventeen 50-paise coins, twentytwo one-rupee coins, nine 2-rupee coins and three 5-rupee coins. What is the total amount in the bag (Ans in rupees) ? Rs. 79 Rs. 62 Rs. 74 Rs. 68 Rs. 79 Rs. 62 Rs. 74 Rs. 68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total = 18/7 + 17/2 + 22 + 9 x 2 + 3 x 5 = 4.5 + 8.5 + 22 + 18 + 15 = Rs 68
Number System 432+2170+35=? 678 523 494 729 678 523 494 729 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 494
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