Question

a boy was p years old r years ago.How old is he now?how old will he be in p-r year's time​

Answer 1

Answer:

1. p+r

2. 2p

Step-by-step explanation:

Past Present Future

1. p after r years

= p+r

2. p+r after p-r years

= p+r+ p-r

= 2p

Answer 2

Answer:

Step-by-step explanation:

1. p+r

2. 2p