Question

one big size postcard is of rupees .20 and three small size postcard are of rupees .30 .what will be the cost of tree big size postcard and one small size postcard?​

Answer 1

Answer:

₹70

Step-by-step explanation:

cost of one big size postcard = ₹20
cost of one small size postcard = 30/3
                                                    = ₹10
cost of 3 big sized and 1 small sized postcards = ₹20+₹20+₹20+₹10
                                                                              = ₹70