What will come at the place of question mark ?
165, 195, 255, 285, 345, ?
A. 390
B. 420
C. 435
D. 375
E. Two answer out of four option
Answer: Option E
Solution(By Examveda Team)
Solution 1: Each number of given series is 15 multiplied by a prime number.15*11, 15*13, 15*17, 15*19, 15*23. So, Missing number is
15*29 = 435. Solution 2: This pattern is +30 and then +60 also follow for the give series. 165+30=195, 195+60=255, 255+30=285, 285+60=345, 345+30=375
This Question Belongs to Competitive Reasoning >> Number Series Completion
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Comments ( 41 )
Related Questions on Number Series Completion
First priority we will give
1.Prime number
2.Cube
3.Square
4.Divide
5.Multiplication
6.Addition and subtraction
So write answer is 435.
Write answer is 435
First priority we will give
1.Prime number
2.Cube
3.Square
4.Divide
5.Multiplication
6.Addition and subtraction
So write answer is 435.
Solution 1 is incorrect because it has (15 * 15) = 225. Here 15 does not belong to the prime number. Hence solution 2 is correct.
Confusing questions never asked in psc government exam
30, two times
60, two times
90, .......
435 correct answer
Pehele sabko 5 se division karne ke bad ek series ata hai...
33,39,51,57,69,___
Difference:-3,12,6,12,___
I think next difference 9 hoga
9+69=78
And then multiply with 5 .
78*5=390
Kya ye ans sahe hoga...plz.. someone help me
Answer is 375
Why u take 15 *29, there must to take the 15*25 particular series so that answer is 375 any way
Only One Answer ..375
Ya there is no logic in giving such double answers
Don't ask...that type of ques...which have 2 ans
Appropriate answer will be 375
Option d is right answer
Ooo i m nt seen that they useing prime no. but option D is right
In solution 1 there is a mistake that is 15*29= 435 . The correct one is 15*25 = 375
so we consider the option D also a Right ans ?
yes option D is also right through above soln 2 pattern
Solution 2: This pattern is +30 and then +60 also follow for the give series.
165+30=195,
195+60=255,
255+30=285,
285+60=345,
345+30=375
so this answer is 375
165 195 255 285 345
+30. +60. +30. +60 and +30+345=375
But. +30. +30. +30So 345+60+30=43
So answers C &D
375 is right answer sir.
There are two solutions I chose method 2 for solutionand got answer 375 but it shows 375 wrong why?
It answer option is D not C
why we don't use the second solution
375
In the solution 2, the last line is written wrong. Instead of adding 30, 90 must be added to obtain the answer as 435.
The answer 375 is wrong.
This is wrong ans
ek bar me 2 number increase ho rha h dusari bar 4 so last me 4 ka increase ho rha h so next 2 yani 15*25=375
165+30=195, 195+60=255, 255+30=285, 285+60=345, 345+30=975
Successive addition of 30 and 60 also makes a resonable result. 375 also must be answer
there should be another answer for this and it is 375
solution:
195-165=30
255-195=60
285-255=30
345-285=60
so the next no. must be 345+30=375
375
30, 60 30 60 ka pattern follow ho rhA H
pattern is +30 nd +60 follow so ans is 375
sir, ans is 375 beacuse combination between 30/60
it also follows the pattern as +30, +60,+30,+60, and the answer comes as 375 which is one of the options.
This can be solved by this way too.
165+30=195 , 195+30=225, 225+60=285 , 285+60=345, 345+90=435 ,
Ans is D sir cause of 60/30 combination
Or both D and C is correct
Is it correct?
your answer is wrong. the right answer is option D
Because first we add 30 and then 60 and so on......
answer can be 375 also..if 30 and 60 are added alternatively..then how to decide which answer is to be choosen??
I am not agree by your calculation.
answer should be 375..