- Date:22 Nov 2020
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Hence the answer is zero, 3 A dishonest dealer professes to sell his goods at the cost price but uses a weight of 800gm. instead of 1kg Find his real gain percent,a 25 b 20 c 30 d None of these. Answer Option a,Solution 200 800 100 25, 4 A train with 90 km h crosses a bridge in 36 seconds Another train 100 metres shorter. crosses the same bridge at 45 km h What is the time taken by the second train to cross the. a 61 seconds b 63 seconds c 62 seconds d 64 seconds. Answer Option d,Solution Train A Speed 90kmph,90 5 18 m s 25m s 25m s t 36s. Let length L x y time speed 25 36 900m,800m Speed 45 5 18 25 2 m s.

t Distance Speed 800 25 2 1600 25 64 seconds, 5 A sum of money lent out at simple interest amounts to Rs 720 after 2 years and to Rs. 1 020 after a further period of 5 years The sum and the rate are. a Rs 500 5 b Rs 400 15 c Rs 600 10 d Rs 700 20,Answer Option c. solution Amount after 2 years Rs 720,Amount after 7 years Rs 1020. Therefore Interest for 5 years Rs 300,Interest for 1 year Rs 60. And Interest for 2 years Rs 120,SO Principal 720 120 Rs 600.

Also 120 600 R 2 100 R 10,Amount after 2 years Rs 720. Amount after 7 years Rs 1020,Therefore Interest for 5 years Rs 300. Interest for 1 year Rs 60,And Interest for 2 years Rs 120. SO Principal 720 120 Rs 600,Also 120 600 R 2 100 R 10. 6 Ramesh travels 760 km to his home partly by train and partly by car He takes 8 hours if. he travels 160 km by train and the rest by car He takes 12 minutes more if he travels 240. km by train and the rest by car What are the speeds of the train and of the car. a Speed of car 90 km h speed of train 60 km h,b Speed of car 100 km h speed of train 80 km h.

c Speed of car 80 km h speed of train 70 km h,d Speed of car 100 km h speed of train 90 km h. Answer Option b, Solution Let speeds be x and y for train and car respectively. Then 8 160 8 600 y 1,And 8 1 5 240 x 760 240 y 2,Solving for x and y we get 100 and 80 km hr. You can also use the option straightway for such Qs. 7 After being set up a company manufactured 6000 scooters in the third year and 7000. scooters in the seventh year Assuming that the production increases uniformly by a fixed. number every year what is the production in the tenth year. a 7850 b 7650 c 7750 d 7950,Answer Option c, Solution You can use A P Tn a n 1 d 6000 a 2d 1 and 7000 a 6d 2. Eqn 2 Eqn 1 1000 4d,i e d 250 and a 6000 500 5500,T10 5500 9 250 7750.

8 Some students planned a picnic The budget for food was Rs 500 But 5 of them failed to. go and thus the cost of food for each member increased by Rs 5 How many students. attended the picnic,a 15 b 25 c 20 d 30,Answer Option c. Solution By direction options 500 25 20 500 20 25, By mathematical method the main steps are xy 500 1 and x 5 y 5 500 2. From eqn 2 x y 5 or y x 5 Put in eqn 1 x x 5 500 or x2 5x 500 0. i e x 25 and attended ones x 5 20, 9 The average score of boys in an examination in a school is 71 and that of the girls is 73. The average score of the school is 71 8 The ratio of the number of boys to that of the girls. that appeared in the examination is,a 1 2 b 3 2 c 2 2 d 4 2. Answer Option d,Solution 71 8 71x 73y x y,71 8 x y 71x 73y.

x y 12 8 which is equals to 3 2, 10 A man sold two steel chairs for Rs 500 each On one he gains 20 and on other he. loses 12 How much does he gain or lose in the whole transaction. a 1 5 gain b 2 gain c 1 5 loss d 2 loss,Answer Option a. Solution CP SP 100 100 x i e Total CP 417 500 100 200 568 500 100 88 985. Since CP SP Therefore Profit 100 985 15,P 15 985 X 100 1 5. 11 Two men A and B start from place X walking at 4 kmph and 5 kmph respectively. How many km apart they are at the end of 3 hours if they are walking in the same. a 4 km b 5 km c 4 3 8 km d 35 7 8 km,Answer Option c. Sloution RS 5 4 1,D 5 4 7 2 35 8 4 3 8 km, 12 Every year an amount increases by 1 8th of itself How much will it be after two years if.

its present value is Rs 64000,a Rs 81000 b Rs 80000 c Rs 75000 d Rs 64000. Answer Option a,Solution 64000 9 8 9 8 81000, 14 In one year the population of a village increased by 10 and in the next year it. decreased by 10 If at the end of 2nd year the population was 7920 what was it in the. a 8500 b 8000 c 8100 d 8400,Answer Option b,Solution x 110 100 90 100 7920. X 0 99 7920,X 7920 0 99, 15 A dishonest dealer professes to sell goods at the cost price but uses a weight of 800. grams per kg what is his percent,a 20 b 25 c 30 d 15.

Answer Option b,Solution 800 200, 16 A reduction of 25 in the price of oil enables a house wife to obtain 5kgs more for. Rs 800 what is the reduced price for kg,a Rs 20 b Rs 30 c Rs 40 d Rs 25. Answer Option c,Solution 800 25 100 200 5,17 Solve the equation for x 19 x y 17 19 x y 21. a 1 b 2 c 3 d 4 e None of these,Answer Option a,Solution 19x 19y 17 19x 19y 21. 38x 38 x 1, 18 The cost of 10 kg of apples is equal to the cost of 24 kg of rice The cost of 6 kg of flour.

equals the cost of 2 kg of rice The cost of each kg of flour is Rs 20 50 Find the total cost of 4. kg of apples 3 kg of rice and 5 kg of flour, a Rs 849 40 b Rs 877 40 c Rs 901 60 d Rs 815 20 e None of these. Answer Option b, Solution Let the costs of each kg of apples and each kg of rice be Rs a and Rs r respectively. 10a 24r and 6 20 50 2r,a 12 5 r and r 61 5,Required total cost 4 147 6 3 61 5 5 20 5. 590 4 184 5 102 5 Rs 877 40, 19 A train 240 m long passed a pole in 24 sec How long will it take to pass a platform 650 m. a 65 sec b 89 sec c 100 sec d 150 sec,Answer Option b.

Solution Speed 240 24 10 m sec,Required time 240 650 10 89 sec. 20 A batsman in his 17th innings makes a score of 85 and their by increasing his average by. 3 What is his average after the 17thinnings,a 34 b 35 c 36 d 37. Answer Option d,Solution 16x 85 17 x 3, 21 Visitors to show were charged Rs 15 each on the first day Rs 7 50 on the second day. Rs 2 50 on the third day and total attendance on the three days were in ratio 2 5 13. respectively The average charge per person for the whole show is. a Rs 3 b Rs 4 50 c Rs 5 00 d Rs 7 50,Answer Option c. Solution 2 5 13,15 7 5 2 5,30x 37 5x 32 5x 100x 20x.

22 A man can row a boat at 20 kmph in still water If the speed of the stream is 6 kmph. what is the time taken to row a distance of 60 km downstream. a 20 6 hours b 27 2 hours c 30 hours d 30 13 hours. Answer Option d,Solution Speed downstream 20 6 26 kmph. Time required to cover 60 km downstream d s 60 26 30 13 hours. 23 The number of sequences in which 7 players can throw a ball so that the youngest. player may not be the last is,a 4000 b 2160 c 4320 d 5300 e 4160. Answer Option c,Solution x Not younger, The last ball can be thrown by any of the remaining 6 players The first 6 players can throw. the ball in P ways,The required number of ways 6 6 4320. 24 Find the one which does not belong to that group. a 123 b 132 c 231 d 321 e 213,Answer Option b,Solution Except 132 other numbers are odd numbers.

25 A rectangular courtyard the sides of which are in the ratio of 4 3 cost Rs 600 for paving. at 50 p per m2 find the length of the diagonal of the courtyard. a 25 m b 35 m c 45 m d 50 m,Answer Option d,Solution 1 m2 1 2. Infosys Aptitude Questions and Answers 1 X 1 3 X 1 9 60 then find X a 4 b 7 c 9 d 0 Answer Option a Solution let us take X a 9 then a 9 1 3 a 9 1 9 60 a 9 3 a 9 9 60 a 3 a 60 a a 2 1 60 by sol this a 4 2 If 26 25 24 3 2 1 are the position of the alphabets Z Y X C B A respectively and each alphabet has a value which equals the position of that alphabet

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