Consider a function which, for a given whole number n,
returns the number of ones required when writing out all
numbers between 0 and n. For example, f(13)=6. Notice that
f(1)=1. What is the next largest n such that f(n)=n?
Answers were Sorted based on User's Feedback
Answer / blahblahblah
#1: N = 1, f(N) = 1
#2: N = 199981, f(N) = 199981
#3: N = 199982, f(N) = 199982
#4: N = 199983, f(N) = 199983
#5: N = 199984, f(N) = 199984
#6: N = 199985, f(N) = 199985
#7: N = 199986, f(N) = 199986
#8: N = 199987, f(N) = 199987
#9: N = 199988, f(N) = 199988
#10: N = 199989, f(N) = 199989
#11: N = 199990, f(N) = 199990
#12: N = 200000, f(N) = 200000
#13: N = 200001, f(N) = 200001
#14: N = 1599981, f(N) = 1599981
#15: N = 1599982, f(N) = 1599982
Is This Answer Correct ? | 7 Yes | 0 No |
Answer / suman
f(2) = 1
f(20)= 12
f(200) = 140
f(2000) = 1600
f(20000) = 18000
f(200000) = 200000
200,000 is the answere
Is This Answer Correct ? | 0 Yes | 6 No |
lowest common factor of 24 , 36 and 40 is?
Three containers A, B and C have volumes a, b, and c respectively; and container A is full of water while the other two are empty. If from container A water is poured into container B which becomes 1/3 full, and into container C which becomes 1/2 full, how much water is left in container A?
City B is 5 miles east of City A. City C is 10 miles southeast of City B. Which of the following is the closest to the distance from City A to City C?
A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his fathe falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min. Tell the speed of river.
X < 0, Y <> 0 then what is the possibility that the result is always positive?
0.23 + 0.02323 + 0.002323.... == ???
Adam stands facing towards northwest direction.He walks 61 m and then turns southwards and walks another 60 m. How far is he from the starting point.?
what is the probability that 4 numbers selected from 1 to 40 are not consecutive.
Convert the decimal number 310 to the base 6.
2. 10 people are there, they are shaking hands together, how many hand shakes possible, if they are in no pair of cyclic sequence.
1027.05 ? 314.005 + 112.25 = ? (a) 825.395 (b) 825.095 (c) 825.305 (d) 825.295 (e) None of these
i want the question paer of godrej boyance company in chennai who are onducting technical test for mechanical engg graduates