Question

1-A no. has 2 digits whose sum is 9 . if 27 is added to the no. its digits 8 interchange find the no.
2- The age of sonal and manoj are in the ratio 7:5. 10 years hence, the ratio of their ages will be 9:7. Find their present ages.
3- find the value of x.
1-13(y-4)-3(y-9)-5 (y+4)=0
2-x/4 +x/6=x/2+3/4

4-The sum of 2 consecutive multiples of three is 69 find them.
PLEASE YARR KOI TO BTAO JO BTAIGA USKO FOLLOW KARUNGA​

Answer 1

Answer:

Step-by-step explanation:

1- let the unit digit be x, so the tens digit will be 9-x.

Number = 10(9-x)+x=90-9x

after interchanging the number will be 10(x)+9-x=9x+9

ATQ

90+27-9x=9x+9

117-9x=9x+9

18x=117-9

18x=108

x=6

therefore 9-x=3

no. is 36