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Logical Reasoning :: Flow Chart

Home > Logical Reasoning > Flow Chart > Discussion

5. Study the flow chart give below and the questions that follow.

The purpose of the following chart is to double the number in each of the boxes 2, 4, 6, 8 and 10.
In order to accomplish exactly this - no more and no less - What is the smallest number Which may be in box 1 ?

capgemini-flow-chart-logical-reasoning-question-Answers-part-4

Answer: Option A

Explanation :

Assume [Box 1]= 19



Instruction 1: 2[Box 2] 2[Box 2] = 4[Box 2​]



Instruction 2: [Box 2] 2 = [Box 4] // increase box num from 2 to 4.



Instruction 3: IS [Box 1] 19 < [Box 2] 4  NO



 



Instruction 1: 4[Box 4] 4[Box 4] = 8[Box 4​]



Instruction 2: [Box 4] 2 = [Box 6]



Instruction 3: IS [Box 1] 19 < [Box 4] 8  NO



 



Instruction 1: 6[Box 6] 6[Box 6] = 12[Box 6]



Instruction 2: [Box 6] 2 = [Box 8] 



Instruction 3: IS [Box 1] 19 < [Box 6]12  NO



 



 



Instruction 1: 8[Box 8] 8[Box 8] = 16[Box 8​]



Instruction 2: [Box 8] 2 = [Box 10] 



Instruction 3: IS [Box 1] 19 < [Box 8]16  NO



 



 



Instruction 1: 10[Box 10] 10[Box 10] = 20[Box 10​]



Instruction 2: [Box 10] 2 = [Box 12]



Instruction 3: IS [Box 1] 19 < [Box 10] 20  YES



END



SO the ans should be 19//option A



// If you put [Box 1] = 9 then instruction end @ Instruction 3: IS [Box 1] 9 < [Box 6]12  Yes



//  If you put [Box 1] = 11 then instruction end @ Instruction 3: IS [Box 1] 11 < [Box 6]12  Yes



// If you put [Box 1] = 15 then instruction end @ Instruction 3: IS [Box 1] 15 < [Box 8]16  Yes



As per mention above we have to double 2,4,6,8,10 value...so loop never ends before updating upto



[Box 10] thats why our ans become 19

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