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A man went to the Reserve Bank of India with ₹2000. He asked the cashier to give him ₹10 and ₹20 notes only in return. The man got 150 notes in all. How many notes of ₹10 did he receive?

#### Options

100

150

50

70

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#### Solution

**100**

**Explanation:**

Let ₹ 10 note be x and ₹ 20 note be y According to the question,

x + y = 150

10x + 20y = 2000

⇒ By Solving

x = 100

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