Two children A and B are playing a game. A can draw a picture in,30 minutes and B can erase it in 40 .in how much time the picture will draw for 1st time?
Answers
Answered by
0
Answer:
120 min
Step-by-step explanation:
>>. (30 × 40 )/ 40-30
>>. 1200/10
>>. 120min
Similar questions