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A day full of math games & activities. Find one near you.
A rational number is such that when you multiply it by 5/2 and add 2/3 to the product, you get -7/12. What is the number?
Solution:
Let's form a linear equation for the given problem statement.
Let the rational number be x.
Multiply x by 5/2 and add 2/3 to it to get the result as -7/12.
5x/2 + 2/3 = -7/12
Multiply by 12 on both sides to get rid of denominator
5x × 6 + 2 × 4 = -7
30x + 8 = -7
30x = -15
x = -15/30 = -1/2
Thus, the number is -1/2
☛ Check: NCERT Solutions for Class 8 Maths Chapter 2
Video Solution:
A rational number is such that when you multiply it by 5/2 and add 2/3 to the product, you get -7/12. What is the number?
NCERT Solutions Class 8 Maths Chapter 2 Exercise 2.2 Question 13
Summary:
A rational number is such that when you multiply it by 5/2 and add 2/3 to the product, you get -7/12. The number is -1/2.
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