alleryଦୁଇ ଜଣ ସାଙ୍ଗଙ୍କ ବୟସର ଅନୁପାତ 4 : 5 ଅଟେ। 6 ବର୍ଷ ପରେ ଏହା 5 : 6 ହେବ। ସାନ ସାଙ୍ଗଙ୍କ ବର୍ତ୍ତମାନର ବୟସ କେତେ?
A28
B24
C30
D20
Answer & Solution
Correct answer: B. 24
(4x + 6)/(5x + 6) = 5/6 କୁ ସମାଧାନ କଲେ x = 6 ମିଳେ, ତେଣୁ ସାନ ଜଣଙ୍କ ବୟସ 4 x 6 = 24 ଅଟେ।
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