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# Here are two different factor trees for 60. Write the missing numbers

**Solution:**

We will be using the concept of factors to solve this.

(a) Let the missing numbers be a_{1}

Since, 6 = 2 × a_{1}

∴ Missing number (a_{1}) = 6 ÷ 2 = 3

Similarly, let the missing numbers be a_{2}

10 = 5 × a_{2}

∴ Missing number (a_{2})= 10 ÷ 5 = 2

(b)Let the missing numbers be a_{1}, a_{2}, a_{3} and a_{4}.

60 = 30 × a_{1}

⇒ a_{1} = 60 ÷ 30 = 2

30 = 10 × a_{2}

⇒ a_{2} = 30 × 10 = 3

10 = a_{3} × a_{4}

⇒ a_{3} = 2 or 5 and a_{4} = 5 or 2

You can also check your answer on Online Common Factor Calculator.

NCERT Solutions for Class 6 Maths Chapter 3 Exercise 3.5 Question 2

## Here are two different factor trees for 60. Write the missing numbers

**Summary:**

The missing numbers of two different factor trees for 60 are:

(a) 3 and 2.

(b) 2, 3, 2, 5.

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