Question

When Suraj goes to Roycefield golf course, he loses 20% of the (golf) balls he uses. When he goes to Hunterdon golf course, he loses 30% of the balls he uses. It costs Suraj $1.20 to buy a ball. This weekend, Suraj is planning to use 25 balls at Roycefield and 30 balls at Hunterdon. If he only has $20 to spend on balls, how many balls can he buy in order to guarantee that he will be able to replace the balls he loses this weekend?

Answer 1

Answer: 16 golf balls

Explanation:

Hi, to answer this question we have to divide the money available (20) by the cost of each golf ball (1.20)

20/1.20 = 16 golf balls

Since he losses 20% of the golf balls he uses when he goes to Roycefield , and he is planning to use 25 balls in that course:

25 x (20/100) = 5

He is going to use 30 balls at Hunterdon, and he losses 30% in that course.

30 x (30/100) = 9

Total golf balls he is going to lose = 9+5 =14

He can buy 16 golf balls, so, he is covered.

Answer 2

Answer: He can buy 16 golf balls to replace the balls he loses this weekend.

Explanation:

Since we have given that

Number of balls uses at Roycefield = 25

Number of balls uses at Hunterdon = 30

Part of balls lose at Roycefield = 20%

Number of balls lose at Roycefield =
`0.2* 25=5`

Number of balls lose at Hunterdon =
`0.3* 30=9`

So, total balls he lose = 5+9=14

Cost of per ball = $1.20

Total amount he has to spend on balls = $20

So, he can buy number of balls which is given by

`(20)/(1.2)=16.6\approx 16`

So, he can buy 16 golf balls to replace the balls he loses this weekend.