Question

If each sweet cost 21/2 rupees,how much do 20 sweets cost?If my friend paid 1/3 of the amount and I paid the rest , calculate my share of the cost.​

Answer 1

Answer:

If 1 sweet costs $\frac{21}{2}$ rs, 20 sweets will cost $\frac{21}{2}$ x 20 rs

= 210 rs

If your friend paid $\frac{1}{3}$ of the cost, he paid  $\frac{1}{3}$ x 210

= 70 rs

Therefore you have to pay 210rs - 70rs = 140rs

Answer 2

Step-by-step explanation:

Cost of one sweet = Rs. 21/2

Cost of 20 sweets = 21/2 x 20

                               = 21 x 10

                               = Rs. 210

Amount paid by the friend = 1/3 of 210

                                            = 1/3 x 210

                                            = Rs. 70

Amount paid by me = 210-70

                                 = Rs. 140

Hope it helps,

Please mark brianliest if it does