Question

Udita reads 1/5th pages of a book. If she reads further 40 pages, she would have read
7/10th pages of the book. How many pages are left to be read?

Answer 1

Answer:

24 pages

Step-by-step explanation:

((1/5) × P) + 40 = (7/10) × P (P + 200)/5 = (7P/10)

By cross mutliplication we get,

2P + 400 = 7P 5P = 400 P = 400/5 … [divide both numerator and denominator by 5]

P = 80

Then, pages read by Reema = Total pages – Pages read

P – (7P/10) = (3P/10) (3/10) × 80 = 24 pages.