Latest TCS Aptitude Question SOLUTION: find 38th term 1,7,8,49,50,56,343,344,350,351,392 ,393,399,400,………

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find 38th term 1,7,8,49,50,56,343,344,350,351,392 ,393,399,400,………

Asked In TCS Pradeep Saw (9 years ago)

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pragya  (9 years ago)

406
1,1*7,7+1,7*7,7*8,7*49,7*50,.....

Is this solution Helpfull? Yes (4) | No (12)  

saurabh kumar  (9 years ago)

1: initially take 1
2: multiply 1 with 7 ie:1*7=7
3:then add 1 to the previous number obtained by multiplying with 7 ie:7+1=8
4:take 2nd no. ie.7 then multiply by 7 ie.:7*7=49
5:again follow the same procedure..ie:add 1 to the 49 ie:49+1=50
this continues ....
To get any specific no. ie at index N. compute N/2. If N is even then the no. at index N will be:
{N/2(should be integer)*7}.
otherwise(if N is odd): N/2*7 + 1.

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Narasapu Hari prasad  (9 years ago)

38 th term is (344*7+1)*7=2409

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uppu venkat  (9 years ago)

2401...they are in the powers of 7

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kundan khatore  (9 years ago)

2401,2402,2408,2409

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