Latest MBA Aptitude Question SOLUTION: All the natural numbers which are multiples of 7 are written one beside the other. What will be the 5000th digit? (share approach)

1) 9
2) 8
3) 2
4) 5

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Previous Question: There is a cuboidal tank containing some methyl alcohol which evaporates at a constant rate (in litres per minute). If twelve identical pipes start pumping methyl alcohol into the tank, the tank will get filled in 96 minutes. Instead, if 14 such pipes are used, the tank will get filled in 72 minutes. How many such pipes would be required, if the tank needs to be filled in 48 minutes?Guys pls post ur approach !!!

1) 15
2) 16
3) 18
4) 20
5) 21
Next Question: If 3x+5y = 18, and the expresssion x^4 * y^2 has its max value the the value of y is (x,y > 0)Plz post the approach

1) 1
2) 1/4
3) 6
4) 5/6
5) 6/5

(#M40016341) MBA question number systems, progressions Keep an EYE

All the natural numbers which are multiples of 7 are written one beside the other. What will be the 5000th digit? (share approach)

1) 9
2) 8
3) 2
4) 5

Asked In MBA (12 years ago)

Unsolved Read Solution (2)

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Read Solution (2) :

Brij  (12 years ago)

5000 th digit will be 9.

one digit numbers = only 1
two digit .....13 using 26 digits
three digit numbers...128 .... 384 digits
Next 1147 four digit numbers ....4588 digits
total digits used = 4999

5000th digit will be first digit of (1+13+128+1147+1)= 1290 th multiple of 7 i.e. first digit of 1290*7 or first digit of 9030 i.e 9

Is this solution Helpfull? Yes (1) | No   

sc mandota  (12 years ago)

5000 th digit will be 9.

one digit numbers = only 1
two digit .....13 using 26 digits
three digit numbers...128 .... 384 digits
Next 1147 four digit numbers ....4588 digits
total digits used = 4999

5000th digit will be first digit of (1+13+128+1147+1)= 1290 th multiple of 7 i.e. first digit of 1290*7 or first digit of 9030 i.e 9

Is this solution Helpfull? Yes | No   

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Previous Question: There is a cuboidal tank containing some methyl alcohol which evaporates at a constant rate (in litres per minute). If twelve identical pipes start pumping methyl alcohol into the tank, the tank will get filled in 96 minutes. Instead, if 14 such pipes are used, the tank will get filled in 72 minutes. How many such pipes would be required, if the tank needs to be filled in 48 minutes?Guys pls post ur approach !!!

1) 15
2) 16
3) 18
4) 20
5) 21
Next Question: If 3x+5y = 18, and the expresssion x^4 * y^2 has its max value the the value of y is (x,y > 0)Plz post the approach

1) 1
2) 1/4
3) 6
4) 5/6
5) 6/5

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