Question

please answer 1 and 2 with statement​

Answer 1

Step-by-step explanation:

Let the total pages in book be x.

Now :

4x/9+3x/5-100=x

(20x+27x-4500)/45=x

47x-4500=45x

47x-45x=4500

2x=4500

x=2250

hence total pages in book =2250

Answer 2

Answer:

(I)Let X be the total number of pages

first day read 4X/9

remaining pages = X-4X/9 = 5X/9

Next day read 3/5 of 5X/9 = X/3

Remaining pages = 100

so X = 4X/9 + X/3 + 100

X = (7X + 900)/9

9X = 7X + 900

2X = 900

X = 450

ii)Let Capacity of Drum = X litres.

Initially, Drum was 3X/4 part filled.

30 litres oil drawn then it become, 7X/12 part.

Now, according to question,

3X/4 - 7X/12 = 30

(9X - 7X)/12 = 30

2X = 360

X = 180 litres.