Fill in the blanks:
(iv) If one pen costs ₹ $x$ , then the cost of $9$ pens is _____.

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Solution

Given: one pen costs = ₹ $x$
So, the cost of $9$ pens $= 9 x$
Hence, The cost of $9$ the pens is ₹ $9 x$ .

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Fill in the blanks:(iv) If one pen costs ₹x, then the cost of 9 pens is _____.

Given: one pen costs = ₹xSo, the cost of 9 pens =9xHence, The cost of 9 the pens is ₹9x.

Fill in the blanks:
(iv) If one pen costs ₹ $x$ , then the cost of $9$ pens is _____.

Given: one pen costs = ₹ $x$
So, the cost of $9$ pens $= 9 x$
Hence, The cost of $9$ the pens is ₹ $9 x$ .