8) If the differnce between twonumbers38 and 5 is 42 find their lom2) 318 3.125 2 47620 About the author Cora
Answer: Solution : Let the smallest number = x and the largest number = y According to the condition, y-x=7y−x=7 …(i) and 6x+y=776x+y=77 ….(ii) From eq. (i) y=7+xy=7+x …(iii) Substituting the eq. (iii) in eq. (ii) we will get, 6x+7+x=776x+7+x=77 ⇒7x=77-7⇒7x=77−7 ⇒x=\frac{70}{7}⇒x= 7 70 ⇒x=10⇒x=10 Now, substituting the value of x in eq. (iii) y=7+x=7+10=17y=7+x=7+10=17 ∴The smallest number 10 and the largest number is 17 Reply
Answer:
Solution :
Let the smallest number = x
and the largest number = y
According to the condition,
y-x=7y−x=7 …(i)
and 6x+y=776x+y=77 ….(ii)
From eq. (i)
y=7+xy=7+x …(iii)
Substituting the eq. (iii) in eq. (ii) we will get,
6x+7+x=776x+7+x=77
⇒7x=77-7⇒7x=77−7
⇒x=\frac{70}{7}⇒x=
7
70
⇒x=10⇒x=10
Now, substituting the value of x in eq. (iii)
y=7+x=7+10=17y=7+x=7+10=17
∴The smallest number 10 and the largest number is 17