Question

If a 3-digit number 1 x 7 is divisible by 3, write all the possible values of x

Answer 1

Answer:

x=1,4,7.

Step-by-step explanation:

Answer 2

Possible answers: 1,2,3,4,5,6,7,8,9,0.

$(i)107 \div 3 = 35.666...$

$(ii)117 \div 3 = 39$

$(iii)127 \div 3 = 42.333...$

$(iv)137 \div 3 = 45.666...$

$(v)147 \div 3 = 49$

$(vi)157 \div 3 = 52.333 ...$

$(vii)167 \div 3 = 55.666...$

$(viii)177 \div 3 = 59$

$(ix)187 \div 3 = 63.333...$

$(x)197 \div 3 = 65.666...$

From the above observations, we can conclude that x can be 1, 4, 7.

Hope it helps.