Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • 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?

Q.13 A rational number is such that when you multiply it by  \frac{5}{2}  and add  \frac{2}{3}  to the product, you get  \frac{-7}{12} . What is the number?

Answers (1)

best_answer

Let the rational number be x.

According to the question,

x\times \frac{5}{2} + \frac{2}{3} = -\frac{7}{12}

Transposing \frac{2}{3}  to the RHS:

x\times \frac{5}{2} = -\frac{7}{12} - \frac{2}{3} = \frac{-15}{12} = \frac{-5}{4}

Multiplication by 2 in both sides, we get

5x = \frac{-5}{4}\times 2 = \frac{-5}{2}

Dividing both sides by 5, we get

x = \frac{-5}{2}\times \frac{1}{5} = \frac{-1}{2}

Posted by

Divya Prakash Singh

View full answer

Similar Questions

Trending Articles/News

anam-khan

JNVST Class 6 admit card 2025 out at navodaya.gov.in; exam in 2 phases
anam-khan

NVS LEST 2025 application correction deadline today at navodaya.gov.in; editable fields
anam-khan

NVS 2025 application correction window for Class 9, 11 admissions opens at navodaya.gov.in

Latest Question