self
Maths Puzzle
Which 2 digit number has its digits reversed when you double it and take 1?
Read Solution (Total 2)
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- 37
reverse it and you get 73 which is 2*37-1. - 12 years agoHelpfull: Yes(5) No(0)
- 37...10q+p=(10p+q)*2-1
.....19p=8q+1
.....q=8,p=3
any two digt no. can writen in frm of 10p+q - 12 years agoHelpfull: Yes(1) No(0)
self Other Question
If you have sticks which measure 1, 2, 3, 4, 5, 6, 7, 8 and 9 cm (one of each) how many different triangles could you make using three of the sticks
AB^2 = CDAE and AB^3 = FGHIJB
Find the values for A,B,C,D,E,F,G,H,I,J.
Each Alphabets contains digits from 0 to 9.
Note : Each numbers carry each alphabets. No repetation