3. Sum of two numbers is 240 and their difference is 20. Find the numbers.
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Answer:
first number=130
second number=110
Step-by-step explanation:
let be number in form of a,b.
according to question:
a+b=240
a-b=20
a+b+a-b=240+20
2a=260
a=260/2
a=130
put the value of a in a+b=240;
130+b=240
b=240-130
b=110.
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