7 is added to a certain number; the sum i… | Answer

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Bank Exam

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পূবালী ব্যাংক লিমিটেড (প্রবেশনারী অফিসার) - ৩০.০৯.২০২৩

7 is added to a certain number; the sum is multiplied by 5, the product is divided by 9 and 3 is subtracted from the quotient. The remainder left is 12. The number is:
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Explanation

Let the original number be x Now {5(x + 7)/9} - 3 = 12 ⇒ {5(x + 7) - 27}/9 = 12 ⇒ 5(x + 7) - 27 = 108 ⇒ 5x + 35 - 27 = 108 ⇒ 5x + 8 = 108 ⇒ 5x = 100 ∴ x = 20

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7 is added to a certain number; the sum is multiplied by 5, the product is divided by 9 and 3 is subtracted from the quotient. The remainder left is 12. The number is:Reading

7 is added to a certain number; the sum is multiplied by 5, the product is divided by 9 and 3 is subtracted from the quotient. The remainder left is 12. The number is:

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7 is added to a certain number; the sum is multiplied by 5, the product is divided by 9 and 3 is subtracted from the quotient. The remainder left is 12. The number is:
Reading