Elitmus
Exam
Numerical Ability
Sequence and Series
7,7,14,42,168, ?
Read Solution (Total 28)
-
- 840
7*1= 7
7*2= 14
14*3=42
42*4=168
168*5=840 - 10 years agoHelpfull: Yes(42) No(0)
- 840
7
7*1=7
7*2=14
14*3=42
42*4=168
168*5=840 - 10 years agoHelpfull: Yes(2) No(0)
- 7*1=7
7*2=14
14*3=42
42*4=168
168*5=840 - 10 years agoHelpfull: Yes(2) No(0)
- 7*1=7,7*2=14,14*3=42-----168*5=840
- 10 years agoHelpfull: Yes(1) No(0)
- 7*1,7*2,14*3,42*4,168*5 = 840
- 10 years agoHelpfull: Yes(1) No(0)
- the answer is 840
- 10 years agoHelpfull: Yes(1) No(0)
- 7*1=7
7*2=14
14*3=42
42*4=168
168*5=840 - 10 years agoHelpfull: Yes(1) No(0)
- 7*1=7
7*2=14
14*3=42
42*4=168
168*5=840 - 10 years agoHelpfull: Yes(1) No(0)
- 7*1=7
7*2=14
14*3=42
42*4=168
168*5=840 - 8 years agoHelpfull: Yes(1) No(0)
- Ans-840
Every no is coming from multiplying by the previous number and natural number coming at that position.ex-2nd 7 is comming from multiplied by 1st 7 and 1.14 came by muliplication of 7 and 2 .. - 10 years agoHelpfull: Yes(0) No(0)
- the sequence is :
7*1= 7
7*2= 14
14*3=42
42*4=168
168*5=840
so answer is 840 - 10 years agoHelpfull: Yes(0) No(0)
- ans is 840
the series is as followes
7*1=7
7*2=14
14*3=42
42*4=168
168*5=840
- 10 years agoHelpfull: Yes(0) No(0)
- 7+7=14*1=14;
14+7=21*2=42;
14+42=56*3=168;
42+168=210*4=840; - 10 years agoHelpfull: Yes(0) No(0)
- 168*5=840
- 10 years agoHelpfull: Yes(0) No(0)
- 840
7*1= 7
7*2= 14
14*3=42
42*4=168
168*5=840 - 10 years agoHelpfull: Yes(0) No(0)
- 7*1=7
7*2=14
14*3=42
42*4=168
168*5=840 - 10 years agoHelpfull: Yes(0) No(0)
- 840.must be d answer.
- 10 years agoHelpfull: Yes(0) No(0)
- 7*1=7
7*2=14
14*3=42
42*4=168
168*5=840 - 10 years agoHelpfull: Yes(0) No(0)
- 7*1=7
7*2=14
14*3=42
42*4=168
168*5=940 - 10 years agoHelpfull: Yes(0) No(3)
- answer is 840
- 9 years agoHelpfull: Yes(0) No(0)
- 168*5=840
multiply with 1,2,3,4,5 - 9 years agoHelpfull: Yes(0) No(0)
- ans: 840
the first digit is 7
so we should multiply 7 with 1 and result will 7 so again we have to multiply 7 with 2 and result is 14 and so on...and hence we should multiply 168 with 5 the result will 840 so ans is 840 .
- 9 years agoHelpfull: Yes(0) No(0)
- 840....
7*1=7
7*2=14
14*3=42
42*4=168
168*5=........
- 9 years agoHelpfull: Yes(0) No(0)
- 7
7*1=7
7*2=14
14*3=42
42*4=168
168*5=840 - 8 years agoHelpfull: Yes(0) No(0)
- 7*1=7
7*2=14
14*3=42
42*4=168
168*5=840
so ans is 840 - 8 years agoHelpfull: Yes(0) No(0)
- 7*1=7, 7*2 =14, 14*3=42,42*4 =168, 168 *5 =840
- 6 years agoHelpfull: Yes(0) No(0)
- A[n] = A[n-1] * n-1. So it will be 840.
- 4 years agoHelpfull: Yes(0) No(0)
- 7*1= 7
7*2= 14
14*3=42
42*4=168
168*5=840
so answer is 840 - 2 years agoHelpfull: Yes(0) No(0)
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