Question

25men dig trench in 42 days find no of days 30 men dug same trench

Answer 1

Answer:

If 30 men tend to dig the same trench it takes 35 days to dig.

Step-by-step explanation:

STEP 1:

X × 30 = 25 × 42 [ It's an inverse proportion, coz when the no. of men were small in number it took them a long while to dig the trench and when the no. of men increased the days get decreased]

STEP 2:

X × 6 = 5 × 42

X = 5 × 7

X = 35

[ 30 and 25 gets cancelled through 5 table, therefore it's replaced with 6 and 5. 42 gets cancelled through 6 table, therefore it's replaced with 7. And X = 5 × 7, and we get the answer 35.]

Answer 2

Answer:

so X =35

Step-by-step explanation:

I hope it will help you