Number System In how many different ways can the letters of the word "MOBILIZE" be arranged ? 20160 17453 19765 18456 20160 17453 19765 18456 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word MOBILIZE has eight letters in which I comes twice ∴ Number of arrangements = 8!/2! = 20160
Number System 56.21 +2.36+5.41 —21.4+1.5=? 64.08 34.08 44.08 54.08 64.08 34.08 44.08 54.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 515 720 660 556 515 720 660 556 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System 735 chocolates were distributed equally among children in such a way that the number of chocolates received by each child is 60% of the total number of children. How many chocolates did each child rec 16 18 14 21 16 18 14 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number of children be 'x' Therefore, each child will receiveX x 60/100 = 3x/5 chocolates∴ X x 3x/5 = 735∴ x² x 735x5/3 = 1225∴ x = 1225 = 35∴ Number of chocolates = 3x/5 = 21
Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 13 15 17 11 13 15 17 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 5 7 3 11 5 7 3 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
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