Advertisements
Advertisements
Question
The product of two rational numbers is -5.If one of these numbers is `(-7)/15`,find the other.
Advertisements
Solution
Let the required rational number be =`"x"`
Other number =`(-7)/15`
Product of rational numbers = -5
⇒`(-7)/15xx"x"=-5`
⇒ `-7"x"=-5xx15`
⇒ `"x"=(-75)/(-7)=75/7`
APPEARS IN
RELATED QUESTIONS
If `3 1/2` litres of milk costs ₹49, find the cost of one litre of milk?
Find (a + b) ÷ (a – b) if a = `1/2`, b = `2/3`
Which of the following rational numbers is equal to its reciprocal?
Reduce the following rational numbers in its lowest form:
`(-60)/72`
Find the product of:
`(-22)/11` and `(-21)/11`
Simplify:
`13/11 xx (-14)/5 + 13/11 xx (-7)/5 + (-13)/11 xx 34/5`
Find the reciprocal of the following:
`3/13 ÷ (-4)/65`
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the sum of reciprocals of x and y.
What should be divided by `1/2` to obtain the greatest negative integer?
If 12 shirts of equal size can be prepared from 27 m cloth, what is length of cloth required for each shirt?
