Book Maths Puzzle Category

A book having 700 pages has its pages numbered from 1 to 700. If we count all the 3’s in the page numbers, how many 3’s will be there

Read Solution (Total 1)

This should be 133 .
because 19 , 3's are in first 100 following the same approach 19*7=133
7 years agoHelpfull: Yes(0) No(2)

Book Other Question

in a 3 km race the speeds of A and B are in the ratio of 6:5 and A wins by 10 secs.what is the time taken by B to finish the race.also to end the race in dead heat what % of total distance A should give the start up to B THE ODDS AGAINST AN EVENT ARE 11:7.FIND THE PROBABILITY THAT THE EVENT WILL OCCUR
A) 7/11
B) 4/11
C) 11/18
D) 7/18