self Maths Puzzle

Find the highest power of 9 dividing 99! completely

a)12
b)14
c)22
d)24

Read Solution (Total 3)

self Other Question

There are 8 YES and NO questions. In how many ways can these be answered?

(1) 512
(2) 256
(3) 257
(4) 513
what power of 15 divides 87! exactly?
a)20
b)29
c)30
d)14