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प्रश्न
The ratio of the pocket money saved by Lokesh and his sister is 5 : 6. If the sister saves Rs 30 more, how much more the brother should save in order to keep the ratio of their savings unchanged?
उत्तर
Let the savings of Lokesh and his sister are 5x and 6x.
and the Lokesh should save Rs y more Now, according to the problem,
⇒ `(5x + y)/(6x + 30) = (5)/(6)`
⇒ 30x + 6y = 30x + 150
⇒ 30x + 6y – 30x = 150
⇒ 6y = 150
∴ y = `(150)/(6)` = 25
Hence, Lokesh should save ₹25 more.
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