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10% of 20 + 20% of 10 increases the number by?
  1. 2
  2. 3
  3. 4
  4. 5
Explanation

Step-by-step solution:

  • 10% of 20 =frac{10}{100} times 20 = 2
  • 20% of 10 =

Now add both: 2+2=4


Last updated question by NA on 07 May 2026

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