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Answer (Detailed Solution Below)

Option 4 : 100 / 100

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Detailed Solution

सही उत्तर 100 / 100 है।

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PrepSnapprepsnap.in • Part -A

Question:

A number decreased by 10% becomes 90. What was the original number? / एक संख्या 10% घटने पर 90 हो जाती है। मूल संख्या क्या थी?

1.
95 / 95
2.
99 / 99
3.
81 / 81
4.
100 / 100

Correct Answer: 100 / 100

x × 0.9 = 90, so x = 100. / x × 0.9 = 90, अतः x = 100।

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