Question

3 ball pen is of 10 rupees and 7 Gel pen is 35 rupees if you have hundred rupees.
1.how many balls and did you buy
2.how many gel pens did you buy.
3.can you buy a sum 15 pen in which 8 of gel &7 of ball pens​

Answer 1

Step-by-step explanation:

cost of 1 ball pen = 10/3

cost of 1 gel pen = 35/7 = 5

1) 100/10/3 = 100/10/3

= 100*3/10

= 30 ball pens.

2)100/5. = 20 gel pens

Answer 2

Answer:

1 ans = 30 ball pens

2 ans= 20 gel pens

3 ans= 8 gel pens =₹40 & 7 ball pens= ₹ 23.31

sum = 40 + 23.31 = ₹63.31