Question

please tell me this 2 ans​

Answer 1

Half the sum of two numbers is 20
(x+y)/2=20
x+y=2*20
x+y=40...............(1)

Three times their difference is 18
3(y-x)=18
3(y-x)/3=18/3
y-x=6..............(2)
Add (1) and (2)
x+y=40...............(1)
y-x=6..............(2)
---------------------
2y=46
2y/2=46/2
y=23
Put the value of y in (1)
x+y=40...............(1)
x+23=40
x=40-23
x=17

Smaller Number = x = 17
Larger Number = y = 23

Answer 2

Answer:

5) Let the nos be x and y(x>y)

ATQ,

x+y/3=14

x+y=42 .  (1)

Also,

x-y/2=4

x-y=8 .     (2)

Adding (1) and (2), we get

2x=50

x=25

In eq (2)

x-y=8

25-y=8

25-8=y

y=17

Nos are 25 and 17

6) Let the nos be x and y(x>y)

ATQ,

x+y/2=20

x+y=40 .  (1)

Also,

3(x-y)=18

x-y=6 .    (2)

Adding (1) and (2), we get

2x=46

x=23

In (2), we get

23-y=6

23-6=y

17=y

Nos are 23 and 17