Question

Problem Solving
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Answer 1

1. Let,

the total number of pages in the book be x

Given,

Number of pages Guru reads = 3/5x

Number of pages Guru didn't read = 2/5x

Now,

2/5x = 80

=> x = 80 × 5/2

.°. x = 200

.°. Total number of pages = 200

Answer 2

answer of 1 question⤵️

Total number of pages = 200

Step-by-step explanation:

Let the total number of pages in the book be x pages.

No. of pages Sachin has  of total no. of pages

∴ Total no. of pages read =   3x53x

No. of pages left to be read = 80 pages

no. of pages read + no. of pages left = total no. of pages

80 + 3x53x = x

80 x 5 + 3x = 5x

400 + 3x = 5x

400 = 5x - 3x

400 = 2x

2x = 400

x = 200

∴ Total number of pages = 200

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