self Maths Puzzle

A six-digit number is formed using all the Six digits 2, 3, 4, 5, 7,8.what is the probability that it is divisible by 11?

Read Solution (Total 2)

self Other Question

If a & b are the root of the equation 4x^2+3x+7=0, then 1/a+1/b=

a)-3/7
b)3/7
c)-3/5
d)3/5
e)-3/4
f)3/4
How many times, minutes hand crosses hour's hand between 12 o'clock noon to 12 o' clock mid night?