Question

seema can type at speed of 40 words per minute and takes 2hr and 20min to type a document. If the typing is to be done in 100 minute then should be her speed

Answer 1

Answer:

Total number of words to be typed is=40×140

Let the new speed be s

Then 100×s =40×140

s=40×140/100=56

(This is a case of direct proportion)