EXERCISE 5AX The units digt of a two-digit number is 3 and seven times – InterviewSolution

1.	EXERCISE 5AX The units digt of a two-digit number is 3 and seven times the sum of the digits is thenumber itself. Find the number.
Answer» since the no. is a 2 digit no. let, the no. be x 3meaning tens digit =x and ones digit =3therefore no. =10x+3but according to the question 7(x+3)=10x+3=7x+21=10x+3=21-3=10x-7x=18=3x=6=xtherefore no. = 10*6+3=63

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