Question
Perry and Harry have a total of 90 pens. If Perry gives Harry 42 pens, Harry will have 4 times as many pens as him. Find 
(a) Perry's pens
(b) Harry's pens
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Perry and Harry have a total of 90 pens. If Perry gives Harry 42 pens, Harry will have 4 times as many pens as him. Find 
(a) Perry's pens
(b) Harry's pens