1: A trout of weight 3 kg is picked up by
a fishermens' cooperative in Srinagar and sold to a
wholesaler at a 9% profit. The wholesaler who
spends Rs 125 on storing 1500 kg of fish in a cold
storage, sells it to a retail chain in Delhi at a 50%
profit, which in turn sells it to a customer at a 166 2/3%
profit for Rs 205.00. What price had the fishermens'
co-operative paid for the trout?
a fishermens' cooperative in Srinagar and sold to a
wholesaler at a 9% profit. The wholesaler who
spends Rs 125 on storing 1500 kg of fish in a cold
storage, sells it to a retail chain in Delhi at a 50%
profit, which in turn sells it to a customer at a 166 2/3%
profit for Rs 205.00. What price had the fishermens'
co-operative paid for the trout?
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❍ Let Gaurav's and Sachin's ages one year ago be 6x and 7x respectively.
Then,
— Four years hence their ages;
Gaurav's age = (6x + 1) + 4 = (6x + 5) years
Sachin's age = (7x + 1) + 4 = (7x + 5) years
\underline{\bigstar\:\boldsymbol{According\; to \;the\; given\; Question :}}
★AccordingtothegivenQuestion:
⠀
According to given condition, Four years hence the ratio of their ages (Gaurav's age & Sachin's age) would become 7: 8.
⠀
Therefore,
⠀
\begin{gathered}:\implies\sf \dfrac{(6x + 5)}{(7x + 5)} = \dfrac{7}{8} \\\\\\:\implies\sf 8(6x + 5) = 7(7x + 5) \\\\\\:\implies\sf 48x + 40 = 49x + 35\\\\\\:\implies\sf 48x - 49x = 35 - 40 \\\\\\:\implies\sf \cancel{\;-}\:1x = \cancel{\;-}\;5\\\\\\:\implies{\underline{\boxed{\frak{\pink{x = 5}}}}}\;\bigstar\end{gathered}
:⟹
(7x+5)
(6x+5)
=
8
7
:⟹8(6x+5)=7(7x+5)
:⟹48x+40=49x+35
:⟹48x−49x=35−40
:⟹
−
1x=
−
5
:⟹
x=5
★
⠀
Hence,
⠀
Gaurav's present age = (6x + 1) = 6(5) + 1 = (30 + 1) = 31 years.
Sachin's present age = (7x + 1) = 7(5) + 1 = (35 + 1) = 36 years.
⠀
\therefore{\underline{\textsf{Hence, \; Sachin\;is\;\textbf{36 years}\;old.}}}∴
Hence, Sachinis36 yearsold.