Mina thinks of a number and subtracts 5\2 from it. she multiplies the result by 8. the result now obtained is 3 times the same number she thought of. what is the number?
Answers
Answered by
28
Given:-
- Mina thinks of a number and subtracts 5\2 from it. she multiplies the result by 8. the result now obtained is 3 times the same number she thought of.
To Find:-
- The number Mina thought
Solution:-
- Let the number be "X"
According to the question :-
→ 8(x - 5/2) = 3x
→8x - 40/2 = 3x
→ 8x - 20 = 3x
→8x-3x=20
→5x=20
→x=20/5
→x=4
- Hence,the number Mina thought is 4.
______________________
Answered by
3
Answer:
4
Step-by-step explanation:
Let the number be x.
According to the question,
=> 8(x - 5/2) = 3x
=> 8x - 40/2 = 3x
=> 8x - 20 = 3x
=> 8x - 3x = 20
=> 5x = 20
=> x = 20/5
=> x = 4
Therefore, the number is 4.
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