Sobi types 108 words in 6 minutes. How many words would she type in half an hour?

Solution:

No. of words Typed       Time Taken

          108                        6 minutes

          x =?                      30 minutes

This is a direct variation. The number of words that can be typed in 30 minutes(half an hour) will be:

x = 108 × (30/6)

x = 108 × 5

x = 540

✦ Try This: Sobi types 128 words in 7 minutes. How many words would she type in 35 minutes?

No. of words Typed       Time Taken

           128                           7 minutes

           x =?                          35 minutes

The number of words that can be typed in 30 minutes(half an hour) will be:

x = 128× (35/7)

x = 128 × 5

x = 640

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 13

---

NCERT Exemplar Class 8 Maths Chapter 10 Problem 69

Sobi types 108 words in 6 minutes. How many words would she type in half an hour

Summary:

Sobi types 108 words in 6 minutes. She will be able to type 540 words in half an hour

---

☛ Related Questions:

• A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average s . . . .
• It is given that l varies directly as m. (i) Write an equation which relates l and m. (ii) Find the . . . .
• If a deposit of Rs 2,000 earns an interest of Rs 500 in 3 years, how much interest would a deposit o . . . .