Arithmetic Aptitude 4 Arithmetic Aptitude 4 Please wait while the activity loads. If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled. If loading fails, click here to try again Question 1 Raghav has got a bag of numbers from 1 to 500, however he want to remove the numbers those are multiple of 9. How many total numbers will be removed? 44 55 50 52 Arithmetic Aptitude 4 Number Divisibility Discuss itQuestion 1-Explanation: The required numbers are 9, 18, 27, 36, 45……450, 459, 468, 477, 486, 495 This is an A.P. with a = 9 and d = 9 Let it has n terms. Then Tn = 495 = 9 + (n-1) x9 ∴ 495 = 9 + 9n - 9 ∴ 9n = 495 ∴ n = 55Question 2How many terms are there in 3,9,27,81........531441? 25121314Arithmetic Aptitude 4 Numbers 50 Aptitude & Reasoning MCQs with Answers Discuss itQuestion 2-Explanation: 3, 9, 27, 81..............531441 form a G.P. with a = 3 and r = 9/3 = 3 Let the number of terms be n According to the formula, Nth term of the G.P is represented as Tn = a x rn-1 Then 3 x 3n-1 = 531441 ∴ 3n = 312 ∴ n = 12Question 37 + 72 + 73...........76 =? 140136142156133256137256Arithmetic Aptitude 4 Simplification and Approximation 50 Aptitude & Reasoning MCQs with Answers Discuss itQuestion 3-Explanation: Given series is a G. P. with a = 7, r = 7 and n = 6 ∴ Sn = a(rn-1) / (r-1) ∴ Sn = 7(76-1) / 6 Sn = = 137256Question 4 Two numbers are in the ratio of 2:9. If their H. C. F. is 19, numbers are:6, 27 8, 3638, 17120, 90Arithmetic Aptitude 4 Ratio and Proportion HCF Discuss itQuestion 4-Explanation: Let the numbers be 2X and 9X Then their H.C.F. is X, so X = 19 ∴ Numbers are (2x19 and 9x19) i.e. 38 and 171Question 5Subhash has 90 currency notes, some of which are Rs. 1000 denomination and rest of Rs. 500 denomination. The total amount is Rs 71,000. How many notes he has in denomination of Rs. 500?30323438Arithmetic Aptitude 4 50 Aptitude & Reasoning MCQs with Answers Discuss itQuestion 5-Explanation: Let the no. of Rs. 500 note be X Then the no. of Rs. 1000 note = 90 – X ∴ 500X + 1000(90 – X) = 71000 ∴ 500X + 90000 – 1000X = 71000 ∴ 500X = 19000 ∴ X = 38 Question 6 If the average of four consecutive odd numbers is 16, find the smallest of these numbers? 5 7 13 11 Arithmetic Aptitude 4 Numbers 50 Aptitude & Reasoning MCQs with Answers Discuss itQuestion 6-Explanation: Let the numbers be x, x+2, x+4 and x+6 Then (x + x + 2 + x + 4 + x + 6)/4 = 16 ∴ 4x + 12 = 64 ∴ x = 13Question 7If the sum of two numbers is 13 and the sum of their square is 85. Find the numbers?6 & 75 & 8 4 & 93 & 10Arithmetic Aptitude 4 Numbers 50 Aptitude & Reasoning MCQs with Answers Discuss itQuestion 7-Explanation: Let the numbers be x and 13-x Then x2 + (13 – x)2 = 85 ∴ x2 + 169 + x2 – 26x = 85 ∴ 2 x2 – 26x + 84 = 0 ∴ x2 – 13x + 42 = 0 ∴ (x-6)(x-7)=0 Hence numbers are 6 & 7 1 There are 7 questions to complete. You have completed questions question Your accuracy is Correct Wrong Partial-Credit You have not finished your quiz. If you leave this page, your progress will be lost. Correct Answer You Selected Not Attempted Final Score on Quiz Attempted Questions Correct Attempted Questions Wrong Questions Not Attempted Total Questions on Quiz Question Details Results Date Score Hint Time allowed minutes seconds Time used Answer Choice(s) Selected Question Text All doneNeed more practice!Keep trying!Not bad!Good work!Perfect! Last Updated : 16 May, 2019 Share your thoughts in the comments Add Your Comment Please Login to comment...