1 Adda247 No. 1 APP for Banking & SSC Preparation Website:store.adda247.com

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1 1 Adda247 No. 1 APP for Banking & SSC Preparation

2 S1. Ans.(b) Sol. P : C = 1 : 1 C : M = 2 : 3 P : E = 1 : 2 P : C : M : E = 2 : 2 : 3 : 4 Therefore, marks in subjects are 2x, 2x, 3x & 4x. A/q, 2x+2x+3x+4x 4 = 55 x = 20 So, marks in Physics = 40 Marks in chemistry = 40 Marks in math = 60 Marks in english = 80 S2. Ans.(b) Solutions Sol. Concentration of glucose are in ratio = 1 2 : 3 5 : 4 5 Quantity of glucose taken from A = 1 litre out of 2 litre. Quantity of glucose taken from B = 3 3 = 1.8 lt. 5 Quantity of glucose taken from C = 0.8 lt. So, total glucose taken out from A, B & C, = 3.6 lt. So, quantity of alcohol = ( ) 3.6 = 2.4 litre. Ratio of glucose to alcohol = 3.6/2.4 = 3:2 S3. Ans.(a) Sol. Let 10 years ago Krishna s age = x years. Let 10 years ago Banshi s age = 3x years A/q, x x = 5 9 x= 16 years So, their present age = = 26 years & = 58 years. Ratio = 13 : 29 S4. Ans.(d) Sol. S.P. = 15 per kg. Profit = % C.P. = 15 3 = Rs Now, flour : sugar = 5 : 3 So in 1 kg = flour = 625 gm. & Sugar = 375 gm. Let price of sugar = 7x Flour = 3x 2 Adda247 No. 1 APP for Banking & SSC Preparation

3 According to question, x + 7x = x = 2 So, C.P. of sugar = 7 2 = 14 Rs./k..g. S5. Ans.(a) Sol = 1.(i) A 2B = = 1 (ii) 2A B Multiply (i) by 3/2 and on solving A will take 7.5 days and B will take 22.5 days. S6. Ans.(b) Sol. Let the average rate of interest is r r = 3900 = 130 % Ratio of amount lent on 8% and 6%=2:19 Amount lent on 8% interest rate = = 21 7 S7. Ans.(c) Sol. Let time taken by all to complete the work =x hours Then, A will take = (x + 6)h B will take = (x + 1)h C will take = (2x)h So, 1 (x + 6) + 1 x x = 1 x = 2x2 + 2x + 2x x + x 2 + 7x + 6 = 1 (x + 6)(x + 1)(2x) x 5x x + 6 = 2x x x 2 + 7x 6 = 0 3x 2 + 9x 2x 6 = 0 3x(x + 3) 2(x + 3) = 0 x = 2 3, 3 so, x = 40 mins 3 Adda247 No. 1 APP for Banking & SSC Preparation

4 S8. Ans.(a) Sol. Let he bought 4x kg, 5x kg and 6x kg of dry fruits Total cost price for dealer = (4x ) + (5x 80) + (6x 60) = 400x + 400x + 360x = 1160 x Total selling price for dealer = 1740 x Required price per kg = 1740x 15x = 116 S9. Ans.(d) Sol. Total yearly expenditure for man = 250, ,000 = Total monthly expenditure for man = Required monthly rent = = Rs 12 S10. Ans.(b) Sol. Let the new cost of sofa set = x x + 9 x = x = = Required % reduction = 1080 = 8.26% S11. Ans.(b) Sol. Growth rate Final value Initial value = Initial value Nokia = = 36 52% Samsung = = 31 = 34.06% MI = = 32 = 45% Moto = = 10 = 66.67% Lenovo = = 63 = 63% Hence, Samsung witnessed lowest growth rate in production from 2006 to 2012 S12. Ans.(a) Sol. Total phones produced by Nokia overall years = 620,000 Required percentage = ,000 = % 12% 4 Adda247 No. 1 APP for Banking & SSC Preparation

5 S13. Ans.(b) Sol. Total production of company MI = = 605 thousands Total production of company Lenovo = = 913 Thousand Ratio = 605 : 913 Ratio = 55 : 83 S14. Ans.(d) Sol. Total phones produced by Nokia and Moto in 2012 = = 130 (in thousand) Total phones produced by Nokia and MI in 2007 = = 150 (in thousands) Required percentage = = % 13% S15. Ans.(a) Sol. Growth rate in production of company from nokia 2006 to Nokia = = 24 = 34.78% Samsung = MI = = 19 = % 91 = 21 = % 71 Moto = = 9 = 60% Lenovo = 143 = 43 = 43% From above, Moto has witnessed maximum growth rate. S16. Ans.(e) Sol. Pattern is 2, 2.5, 3, 3.5, 4 Wrong term = = 525 S17. Ans.(d) Sol. Series is 5 Adda247 No. 1 APP for Banking & SSC Preparation

S18. Ans.(c) Sol. Pattern is 2 4, 4 9, 6 16, 8 25, 10 36, Wrong term = 1790 183 10 36 = 1794 S19. Ans.(a) Sol. Pattern is 3, 6, 3, 6, 3, 6 Wrong term = 10 3 3 = 9 S20. Ans.(a) Sol. Series is Wrong term = 48.

6 S18. Ans.(c) Sol. Pattern is 2 4, 4 9, 6 16, 8 25, 10 36, Wrong term = = 1794 S19. Ans.(a) Sol. Pattern is 3, 6, 3, 6, 3, 6 Wrong term = = 9 S20. Ans.(a) Sol. Series is Wrong term = 48.5 S21. Ans.(c) Sol. Let length of train = x metres Speed of train = x+a t Given A = length of platform (given) From A, x + y = (x+a) 36 t y = Length of stationary train (in m) From B, Length of platform = 3 2 y y = 2 3 A From C, (x + A) x = 9 t x(t 9) = 9A x = 9A t 9 = known S22. Ans.(d) Sol. From A, r = 3l, l =slant height of cone 5 From B, Volume of cone = 1 3 πr 1 2 h = 432 cm³ From C, h = unknown Answer cannot be found 6 Adda247 No. 1 APP for Banking & SSC Preparation

7 S23. Ans.(d) Sol. Let CP of scooter = Rs x From A, MP of scooter = SP of bike From B, SP of scooter = 115x/ From C, SP of bike = x Since, SP of bike is not known. So, answer cannot be found S24. Ans.(d) Sol. Let largest no. = Z Middle No. = Y Smallest No. = X From A, Z = X + 12 B, X + Z = 2Y C, Here, we don t know the sequence of odd numbers i.e. whether it is in increasing order or in decreasing order. From all statements, we can t determine the average value S25. Ans.(e) Sol. A p = 40 B 4g + 2p = 28 + (g + p) 2 g = 14 C p + g = 60 6 = 54, using A g = = 14 So either B alone or A and C together are sufficient. S26. Ans.(a) Sol. Let distance = d Speed in still water = x Speed of current = y d x = 2 From A, d given From B, d x+y = given From C, y = given So, any two of them together are sufficient. S27. Ans.(d) Sol. Required no. of boys in schools R and U = ( ) + ( ) = = 2275 Required percentage = 2275 = 75.83% Adda247 No. 1 APP for Banking & SSC Preparation

S28. Ans.(c) Sol. Total no. of boys in school T = 1250 1250 40 = 1250 500 = 750 S29. Ans.(a) Sol. Required percentage = 2000 = 88.88 89% 2250 S30. Ans.(b) Sol. Required average no.

8 S28. Ans.(c) Sol. Total no. of boys in school T = = = 750 S29. Ans.(a) Sol. Required percentage = 2000 = % 2250 S30. Ans.(b) Sol. Required average no. = = ( ) + ( ) = = 1575 S31. Ans.(c) Sol. Required ratio = = 25 4 = S32. Ans.(a) Sol. Let Sped of pedestrian = x km/h Speed of cyclist = y km/h 2 (x + y) = 40 x + y = 20 km/h According to second condition, 40 x 40 y = 15 2 Now, going through options we get x = 4 km/hr. S33. Ans.(d) Sol. From option (a), total worth = = 60 crores From (b), total worth = = 68 crores From (c), total worth = = 58 crores 8 Adda247 No. 1 APP for Banking & SSC Preparation

9 From (d) total worth = = 80 crores From (e) total worth = = 64 crores S34. Ans.(c) Sol. Let C.P of 1 cycle = Rs S.P. of 1 cycle =Rs 240 New S.P. of 1 cycle = 240 = Rs 120 No. of cycles sold now = 7 total new S.P. = =Rs 840 Total C.P. = 700 Profit remains same S35. Ans.(c) Sol. Let filling capacity be x m 3 /min So, emptying capacity = (x + 10) m 3 /min According to question = 8 x x ( x+10 x ) = 8 x(x+10) x x 3000 = 0 x = 50 m 3 /min 2 S36. Ans.(c) Sol. Total C.P. of mixed varities = = Rs. 410 price per kg = Rs. 41 So, required S.P. = = Rs S37. Ans.(d) Sol. Total expenditure of Soha = 7800 = Rs Total annual salary = = Rs 2,64,000 6 S38. Ans.(c) Sol. Total expenditure of Suchi = 4200 = Rs 10,000 Savings of Suchi = = Rs 12,000 Total expenditure of Meenu = 7200 = Rs Savings of Meenu = = Rs So, required difference = Rs Adda247 No. 1 APP for Banking & SSC Preparation

S39. Ans.(b) Sol. Expenditure of Ruchi on rent = 22 9 14 28000 = Rs 3960 Expenditure of Meenu on food = 25 7200 = Rs 3000 Required percentage= 3960 = 132% 3000 S40. Ans.(e) Sol.

10 S39. Ans.(b) Sol. Expenditure of Ruchi on rent = = Rs 3960 Expenditure of Meenu on food = = Rs 3000 Required percentage= 3960 = 132% 3000 S40. Ans.(e) Sol. Savings of Ruchi = = Rs Savings of Teena = = Rs Required percentage = 6000 = 37.5% Solutions (41-45) 60 Total population = 2400 n(a) = People who like light music n(b) = people who like semi classical music n(c) = People who like classical music n(a B) = People who like light and semi classical music both n(b C) = People who like semi classical and classical music both n(a C) = People who like light and classical music both n(a B C) =People who like all the three types of music 240 converting into percentage = = 10% = ( x) + 4 x = = 10% = n(a C) 10 Adda247 No. 1 APP for Banking & SSC Preparation

11 S41. Ans.(b) Sol. Required percentage = 10 42% 24 S42. Ans.(c) Sol. Required average (From venn diagram) = 1 ( ) = 640 S43. Ans.(a) Sol. Required answer = (6 + 4) 24 = 240 S44. Ans.(b) Sol. Required no. of males in that population who like semi classical music = = 624 Required percentage = = 26% S45. Ans.(d) Sol. Required difference (40 30) = 2400 = 240 S46. Ans.(a) Sol = S47. Ans.(b) Sol = Adda247 No. 1 APP for Banking & SSC Preparation

S48. Ans.(e) Sol. 5 4 4875 + 88 15 5 1219 + 1320 6095 + 1320 = 7415 S49. Ans.(e) Sol. 39 15 28 10 5 61 = 36 +?

12 S48. Ans.(e) Sol = 7415 S49. Ans.(e) Sol = 36 +?? = 25 = 36+? S50. Ans.(e) Sol ? = ? = 951? Adda247 No. 1 APP for Banking & SSC Preparation

13 13 Adda247 No. 1 APP for Banking & SSC Preparation

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1 Adda247 No. 1 APP for Banking & SSC Preparation S46. Ans.(d) Sol. Let width of the path = x cm So, length of the park will be = (x + 4) cm So, 4 3 (Area of path) = Area of the park Solutions => 4 [x(x