Question

ding to the question,
Cloxty) -(10y + x) = 1 .
Q-4,the following table
shows the quantities of
= x - y = 2
suger and their cost, dran
a graph to show the data
and find the cost of 35kg seling and we get
of suger. *
Again according to the question,
x = 5, y = 3
So the number will be = 36
)
Quntity of
Suyce (in kg)
To
200
Cost (in )
Find the cost of​

Answer 1

Step-by-step explanation:

let digit at ones place=x and

digit at tens place=y

So, the number will be 10y+x

x+y=7 ....(1)

reverse digit will be represented as, 10x+y

So,

(10x+y)-(10y-x)=27

9x-9y=27

x-y=3 ....(2)

Adding equation (1) and (2)

2x=10

x=5

substituting in equation (1)

y=7-5

=2

Thus, the number will be 25

'