Martina wants to buy as many felt-tip pens as possible for $10. If the pens cost between $1.75 and $2.30, what is the greatest number of pens Martina can buy?

If four pens cost $1.96, what is the greatest number of pens that can be purchased for $7.68?

If he cost of 20 pens is Rs 110, find the number of pens that can be bought for R 33.

If the cost of the 10 pens is Rs.180, calculate the cost of 2 pens

If cost of 12 pens is Rs84. then what is the cost of 10 such pens ?

The ratio of the number of pens to the number of erasers is 5: 1. If there are 30 pens and erasers together, what is the number of erasers?

Question #2 Sumit went to the market with Rs. 100. If he buys three pens and six pencils he uses up all his money. On the other hand, if he buys three pencils and six pens he would fall short by 20%. If he wants to buy equal number of pens and pencils, how many pencils can he buy?