Question

X is two digit number such that the product of its digits is multiple of 10

Answer 1

$Given \: X \: is \: a \: set \:of \: two \:digit \\number \: such \: that \: the \: product \: of \: it's \\digits \: is \: multiple \: of \: 10$

$\begin {tabular} {|c|c|c|}</p><p>\cline {1-3} two digit number & product of digits& multiple of 10 \\</p><p>\cline {1-3} 25&2\times 5=10 & yes \\</p><p>\cline {1-3} 45&4\times 5=20&yes \\</p><p>\cline {1-3} 52&5\times 2 = 10 &yes \\</p><p>\cline {1-3} 54& 5\times 4 = 20& yes \\</p><p>\cline {1-3} 56&5\times 6 = 39& yes \\</p><p>\cline {1-3} 58& 5\times 8 = 40& yes\\</p><p>\cline {1-3} 65&6\times 5 = 30 &yes \\</p><p>\cline {1-3} 85&8 \times 5 = 40& yes \\</p><p>\cline {1-3} </p><p>\end {tabular}$

Therefore.,

$\green{X = \{ 25,45,52,54,56,58,65,85\}}$

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Answer 2

Question : 'x' is a two-digit number such that the product of its digits is a multiple of 10.

Step-by-step explanation:

Solution:- given,

X is a two digit no. whose has product of its digits as a multiple of 10.

e.g - 25 = 2x5= 10 ( 10 is multiple of ten)

Therefore, 25=2x5= 10

45=4x5=20

52=5x2=10

54=5x4=20

56=5x6=30

58=5x8=40

65=6x5=30

85=8x5=40

Therefore, the no.s are 25 , 45, 52, 56,58,65,85.