The present ratio of students to teachers at a certain school is 30 to 1. If the number of students were to increase by 50 and that of teachers were to increase by 5, the ratio of students to teachers would then be 25 to 1. What is the present number of teachers?
ক) 8
খ) 10
গ) 12
ঘ) 15
Related Questions
ক) Tk.4000
খ) Tk.6100
গ) Tk.6400
ঘ) Tk. 16500
ক) Tk. 15000
খ) Tk. 16000
গ) Tk. 18000
ঘ) None of these
ক) 4 cm
খ) 6 cm
গ) 10 cm
ঘ) 14 cm
ক) 200
খ) 250
গ) 300
ঘ) 350
ক) 180°
খ) 240°
গ) 360°
ঘ) 540°
ক) -10/9
খ) 5/4
গ) -5/3
ঘ) -5/4
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