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The principal and operation accounts are in the ratio of 7:5. If Rs. 90,000 is transferred from the principal account to the operation account, the ratio becomes 5:4. What was the original amount in the principal account?
  1. Rs. 1,891,000
  2. Rs. 1,892,000
  3. Rs. 1,890,000
  4. None of these
Explanation

Principal and Operation accounts ratio is 7:5

So let principal = 7x

And operation = 5x

Rs 90000 transferred from principal to operation

So new principal = 7x - 90000

New operation = 5x + 90000

New ratio is 5:4

(7x - 90000) / (5x + 90000) = 5/4

Cross multiply

4_(7x - 90000) = 5_(5x + 90000)

28x - 360000 = 25x + 450000

28x - 25x = 450000 + 360000

3x = 810000

x = 270000

Original principal amount = 7x = 7 * 270000 = 1890000


Last verified on 24-10-2026

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اس سوال کو وضاحت کے ساتھ پڑھیں
The principal and operation accounts are in the ratio of 7:5. If Rs. 90,000 is transferred from the principal account to the operation account, the ratio becomes 5:4. What was the original amount in the principal account?
  1. Rs. 1,891,000
  2. Rs. 1,892,000
  3. Rs. 1,890,000
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
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تناسب کیا ہے؟
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  4. None of these
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