২৬২৩১
2 large and 1 small pumps can fill a water tank in 4 hours. One large and 3 small pumps can also fill the same water tank in 4 hours. how many hours will it take for 3 large and 4 small pumps to fill the tank?
উত্তর
2 hours
২৬২৩৪
Which equation gives the relationship between R and S in the table below? R 1 2 3 4 5 6, S 2 5 8 11 14 17
উত্তর
S=3R-1