एक संख्या के जब 15 घटाया जाता है, तो वह घटकर 80% हो जाती है, तो उस संख्या का 40% कितना होगा ?A. 75B. 60C. 30D. 90

एक संख्या के जब 15 घटाया जात�

1.	एक संख्या के जब 15 घटाया जाता है, तो वह घटकर 80% हो जाती है, तो उस संख्या का 40% कितना होगा ?A. 75B. 60C. 30D. 90
Answer» Correct Answer - c (c ) Let the numbers = x According to the questions, `x-15=(80x)/(100)` `x-15=(4x)/(5)` 5x -75= 4x x = 75 Required answer `=75xx(40)/(100)=30`

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एक संख्या के जब 15 घटाया जाता है, तो वह घटकर 80% हो जाती है, तो उस संख्या का 40% कितना होगा ?A. 75B. 60C. 30D. 90

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