The cost of $3$ digital cameras and $5$ cell phones is Rs. $35, 290$ . What is the cost of $9$ digital cameras and $15$ cell phones?

Rs.

1, 68, 450

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Rs.

1, 79, 220

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Rs.

1, 05, 870

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None of these

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Solution

The correct option is C Rs. $1, 05, 870$
Cost of ( $3$ digital cameras $+ 5$ cell phones) $=$ Rs $35, 290$
$∵$ Cost of ( $9$ digital cameras $+ 15$ cell phones) $= 3 \times$ [cost of( $3$ digital cameras $+ 5$ cell phones)]
$= 3 \times$ Rs. $35, 290 =$ Rs. $1, 05, 870$ .

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The cost of 3 digital cameras and 5 cell phones is Rs. 35,290. What is the cost of 9 digital cameras and 15 cell phones?

The correct option is C Rs. 1,05,870Cost of (3 digital cameras +5 cell phones) =Rs 35,290 ∵ Cost of (9 digital cameras +15 cell phones) =3× [cost of( 3 digital cameras +5 cell phones)] =3× Rs. 35,290= Rs. 1,05,870.

The cost of $3$ digital cameras and $5$ cell phones is Rs. $35, 290$ . What is the cost of $9$ digital cameras and $15$ cell phones?

The correct option is C Rs. $1, 05, 870$
Cost of ( $3$ digital cameras $+ 5$ cell phones) $=$ Rs $35, 290$
$∵$ Cost of ( $9$ digital cameras $+ 15$ cell phones) $= 3 \times$ [cost of( $3$ digital cameras $+ 5$ cell phones)]
$= 3 \times$ Rs. $35, 290 =$ Rs. $1, 05, 870$ .