(i) Construct a word problem on simultaneous linear equations in two variables
(on age, rupees, metres, speed, etc.), so that the value of one variable will be 18.
(OEQ)
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3
Answer:
Lalithya bought some apples and oranges. The shopkeeper said that the number of oranges are twice the number of apples. Then find the number of oranges and apples where sum of them is 18.
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9
The sum of two numbers is 38 and the difference between them is 2. Find the numbers.
Step-by-step explanation:
The sum of two numbers is 38 and the difference between them is 2. Find the numbers.
Solution :
Let the numbers be x and y.
The sum of two numbers is 38.
Hence, x + y = 38 ...(i)
The difference between them is 2.
x - y = 2 ...(ii)
Adding (i) and (ii) we get
2x = 36
x = 18
and 18 + y = 38
y = 20
Hence, the numbers are 18 and 20.
#Learn more:
Defination of linear equation and general solution of linear equation
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