Question
Instead of multiplying a number by 0.9, a student
accidentally used 9. His result turned out to be 3510 more than the actual result. What is the original number? (Calculate approximate number)Solution
ATQ,
Let original number be ‘x’
So, 9x – 0.9x = 3510
Or, 8.1x = 3510
Or, x = 433.33 or 433 approx.
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