Math, asked by shraddha33204, 1 year ago

Seven times a two digit number is equal to four times the number obtained by reversing the order of the digits. If the sum of the digits is 9, find the number

Answers

Answered by sam287

Hope it helps you !!!!

Attachments:

sam287: if i can solve them

shraddha33204: Show that ^3√6

is not a rational number

shraddha33204: ll u be able to solve so i should post

sam287: i m unable to understand it. Is the question is prove that three root six is an irrational no.

shraddha33204: ya

shraddha33204: ll u be able to???

sam287: yup i can solve it

shraddha33204: so i am posting it pls solve

shraddha33204: i am posting 2-3 question together pls answer all

sam287: okk lets see

Answered by Anonymous

Let numbers be x at ones place and y at tens place so
10y+x is that digit
now reversed digit is 10x+y
according to question
7 (10y+x)=4(10x+y)
x=2y (i)
now
given
x-y=3
from eq. i 2y=x
2y-y=3
y=3
so
x=63
required original no. is 36 and reversed digit is 63

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