28. The cost of 3 digital cameras and 5 cellphones is Rs.35,290 what is the cost of 9 digital cameras and 15 cellphones?​

Answer: answer is in the attachment

Step-by-step explanation:

HeRe Is Your Ans ⤵

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Let The Cost of 1 digital camera is X and The Cost Of 1 cell phone is Y

According To The Question ,

3X + 5Y = 35290

9X + 15Y = ?

This Is Multiple Of 3 Then

9X + 15Y = 35290 × 3

9X + 15Y = 105870

Hence , ₹ 105870 the cost of 9 digital cameras

and 15 cellphones

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