Question

The cost of 2 puffs, 14 cups of coffee and 5 pizzas is ₹ 356 . The cost of 20 puffs, 7 cups of coffee and 15 pizzas is ₹ 830 . Find the cost of 38 puffs and 25 pizzas. (in ₹)

• A. 1296
• B. 1104
• C. 1304
• D. 1034

Answer 1

Answer: (C)

Let the cost of each puff be $p$.
Let the cost of each coffee be $c$.
Let the cost of each pizza be $z$.
Then $2p+14c+5z=356$
Also, $20p+7c+15z=830$
Multiply Eq. (2) by 2 , we have
$40p+14c+30z=1660$
Subtracting Eq. (1) from Eq. (3), we have, $38p+25z=1304$