self Maths Puzzle

5+3+2 = 151012
7+2+5 = 143542
5+4+5 = 202404

Then find out 8+4+9 = ?

a)682723
b)867232
c)742627
d)327286

Read Solution (Total 3)

ans=d
a+b+c= a*b a*c rev(a+c*b)
8+4+9= 8*4 8*9 rev(8+9*4)=327286
11 years agoHelpfull: Yes(6) No(1)

wat is rev??
11 years agoHelpfull: Yes(0) No(0)
3rd eqn. 5+4+5 = 202404, doesn't satisfy the condition
'a+b+c = a*b a*c rev(a+c*b)'
11 years agoHelpfull: Yes(0) No(0)

self Other Question

Find the units digit of 2483^(122!). Two boys A and B are at two diametrically opposite points on a circle. At one
instant the two start running on the circle; A anticlockwise with constant speed v
and B clockwise with constant speed 2v. In 2 minutes, they pass each other for
the first time. How much later will they pass each other for the second time?
1. 1 minute
2. 2 minutes
3. 3 minutes
4. 4 minutes