Latest self Aptitude Question SOLUTION: How many numbers start or end with 2 b/w 100 and 402??

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How many numbers start or end with 2 b/w 100 and 402??

Vignesh (12 years ago)

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Pargat Pal Singh  (12 years ago)

Numbers starting with 2 ---- 200,201,......299 -------- 100 numbers

other Numbers ending with 2 are ---102,112....192 -------- 10 numbers
....................................302,312,...392 ---------10 numbers
.................................... 402------------------- 1 number

If 402 is to be included, then 121
If 402 is not to be included, then 120

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Aditya Singh  (12 years ago)

numbers ending with 2 are:
102,112,122,....192 (10 numbers)
202.......292,,302.....392
total nos.are 30
numbers start with 2 are 200,201,......299 are 100 number
therefore total numbers are 130. if we include 402 then ans. is 131 but we have to find nos.btwn 100& 402..so, i think ans is 130

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Rakesh Kumar Kohli  (12 years ago)

Numbers ending with 2 are ---102,112....192 -------- 10 numbers
.............................202,212,...292 -------- 10 numbers
.............................302,312,...392 ---------10 numbers
............................ 402------------------- 1 number

Numbers starting with 2 are .... 200,201,......299 -------- 100 numbers
If 402 is to be included, then the numbers start or end with 2 b/w 100 and 402 are 131(10+10+10+1+100).
If 402 is not to be included, then the numbers start or end with 2 b/w 100 and 402 are 130(10+10+10+100).

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Aditya Singh  (12 years ago)

MR. Pargat is right .....i included nos. 202,212,222....292 bt it is already counted in numbers starting with 2 i.e. 200,201,(202),.....211,(212) &so on so correct answer is 120.

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