Latest self Aptitude Question SOLUTION: How many numbers between 200 and 1200 can be formed with digits 0,1,2,3(repetition of digits not allowed)? OPTIONS- a)6 b)8 c)2 d)14

• Placement Papers
• /
• self

self Question Papers:

(#M40013753) SELF question EASY Keep an EYE

How many numbers between 200 and 1200 can be formed with digits 0,1,2,3(repetition of digits not allowed)?

OPTIONS-
a)6
b)8
c)2
d)14

PANKAJ KUMAR (11 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (22)   (16) Submit Your Solution

Read Solution (2) :

Vinay Sipani   (11 years ago)

B/w 200 and 1200, there are both 3 and 4 digit numbers.

1) 3 digit numbers:-
The numbers must be greater than 200
=> 1st digit = 2 or 3 i.e 2 ways
=> 2nd digit = 3 ways
=> 3rd digit = 2
=> 2x3x2 = 12 numbers are of three digits

2) 4 digit nos:-
1st digit can onlly be 1 => 1 way
2nd digit = 0 => 1 way
3rd digit = 2,3 => 2 ways
4th digit = 1 way
=> 1x1x2x1 = 2 numbers possible for 4 digits.

Therefore, 12 + 2 = 14 numbers possible

Is this solution Helpfull? Yes (11) | No (4)  

atuljain  (10 years ago)

0,1,2,3 For 200 2 should be first place. there is only one way to put 2 at first place so 1*remaining digits!=>1*3*2=6 ok
now same for 3 bcs 3 is available in digits. so 1*3*2=6 now
above 1000 we can make only 1 should be first digits means only one way,0 should be second digits means only one way and remaining! =>1*1*2=2
total of all 6+6+2=14 if this is not clear then u can put ur comment below this question i will try to explain again.thanku

Is this solution Helpfull? Yes | No (1)  

Please Login to Read Solution.