The sum of the ages of Rupali and Dipali is 34 years. Rupali is 6 years younger than Dipali. Find their present ages. About the author Brielle
Answer: Let, the present age of Monali be xyrs and that of sonali be yyrs. As per condition 1 ie., Sum of the ages of Monali and Sonali is 29 years. The equation becomes, x+y=29 As per condition 2 i.e., Monali is younger than Sonali by 3 years. The equation becomes, x=y−3 ∴x−y=−3 Reply
[tex]\textrm{Age of Rupali + Age of Dipali = 34 years}[/tex] [tex]\longrightarrow\rm{(6+x) + x = 34 \:years\quad…\:Considering\:Age\:of\:Dipali = x}[/tex] [tex]\longrightarrow\rm{6+x + x = 34 \:years}\longrightarrow\rm{6+2x = 34 \:years}[/tex] [tex]\longrightarrow\rm{2x = 34 \:years – 6\:years = 28\:years}[/tex] [tex]\longrightarrow\rm{x = 28/2\:years}\longrightarrow\rm{x = 14\:years}[/tex] [tex]\bigstar\textrm{ Hence, Age of Deepali = 14 years $\&$ Age of Rupali = 14 years + 6 years = 20 years}[/tex] Reply
Answer:
Let, the present age of Monali be xyrs and that of sonali be yyrs.
As per condition 1 ie., Sum of the ages of Monali and Sonali is 29 years.
The equation becomes,
x+y=29
As per condition 2 i.e., Monali is younger than Sonali by 3 years.
The equation becomes,
x=y−3
∴x−y=−3
[tex]\textrm{Age of Rupali + Age of Dipali = 34 years}[/tex]
[tex]\longrightarrow\rm{(6+x) + x = 34 \:years\quad…\:Considering\:Age\:of\:Dipali = x}[/tex]
[tex]\longrightarrow\rm{6+x + x = 34 \:years}\longrightarrow\rm{6+2x = 34 \:years}[/tex]
[tex]\longrightarrow\rm{2x = 34 \:years – 6\:years = 28\:years}[/tex]
[tex]\longrightarrow\rm{x = 28/2\:years}\longrightarrow\rm{x = 14\:years}[/tex]
[tex]\bigstar\textrm{ Hence, Age of Deepali = 14 years $\&$ Age of Rupali = 14 years + 6 years = 20 years}[/tex]