A. 32

B. 20

C. 24

D. 16

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**ANSWER: A. 32 Solution:Let cost price of lemons be x.Selling price of lemons becomes CP - loss.=>SP=x-(20/100)x=>40=x(80/100)=>50So 45 lemons cost Rs 50Cost of 1 lemon = 50/45 RsCost of 24 lemons = (50/45)*24 =80/3 RsSelling Price of 24 lemons =(80/3)+(20/100)(80/3)=Rs 32**

A. 1

B. 121

C. 100

D. 1000

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**ANSWER: D. 1000 Solution: It is mentioned that m and n are 2 whole numbers. m**

A. 1/2

B. 2/3

C. 3/5

D. 2/5

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**ANSWER: B. 2/3 Ans: Let the fraction be x/y.=> (x+1)/y = 1=> x+1 = y—(1) x/(y-1) = 1/2=> 2x = (y+1)—(2)=>Equating (1) and (2)=> x+1 = 2x-1=>x=2Subsituting the value of x in (1)=>y=3=>2/3**

A. 1:4

B. 1:2

C. 2:1

D. 2:3

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**ANSWER: A. 1:4 **

A. 2

B. 6

C. 3

D. 4

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**ANSWER: C. 3 Solution: Simple Interest =Principal * Rate * TimePrincipal = 2600 RsInterest Rate = 6.67% => SI = 2600 * (20/3)*TimeSI of the number will be a whole number for the first time when time is three as denominator of rate is 3.Hence time should be set to 3 years.**

A. 12.5 kmph

B. 10 kmph

C. 9 kmph

D. 8.5 kmph

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**ANSWER: B. 10 kmph Solution: Let the speed of man in still water be x km/hrNow, speed with current=15 km/hrSpeed of current: 2.5 km/hrSpeed of man with current: Speed of man in still water+Speed of current=>15=x+2.5=>x=12.5Speed of man against the current: Speed of man in still water-Speed of current=>12.5-2.5=>10 km/hr**

A. 25%

B. 20%

C. 14.29%

D. 33.33%

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**ANSWER: B. 20% Solution: Let the jar initially contain 8 litres of mixture:3 litres water and 5 litres alcoholLet x litres of this mixture is drawn out and is replaced by x litres of water.Amount of water now in the solution: 3-(3/8)x+x.Amount of alcohol now in the solution: 5-(5/8)xDesired ratio: 1/1=>3-(3/8)x+x=5-(5/8)xx=8/5 litres%x=((8/5)/8)*100=20%**

5, 8, 20, 42, 124, 246

A. 20

B. 42

C. 124

D. 246

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**ANSWER: A. 20 Solution: The series is followed on the pattern of 2 alternate sequences with common formula being 2n-2 and 3n-2 respectively.8 = 2*5-222 = 3*8-242 = 22*2-2124 = 42*3-2246 = 124*2-2Hence, 20 is the odd no.**

A. 10.25 days

B. 11.5 days

C. 12.75 days

D. 9 days

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**ANSWER: A. 10.25 days Solution: A takes 9 days to complete a piece of work. B takes 12 days to complete a piece of work.=> In one day A came complete 1/9th of the task(x/9)=> In one day B can complete 1/12th of the job.(x/12)First day x/9th work will be done next day x/12th and so on:Together A and B can do x/9 + x/12 work.=>(x/9) + (x/12) = 7/36th work doneIn 10 days 35/36th of the work will be done.On 11th day it will be A’s chance. It takes A 1 day to complete 1/9th work.So, 1/36th work will be done in 1/4 days.=>10.25 days**

A. 5

B. 10

C. 25

D. 125

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**ANSWER: A. 5 Solution: 125 can be written as 5**

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