what is the procedure to get solution in indirect proporation
Answers
These examples might help you:
EXAMPLE 1
If 35 men can reap a field in 8 days; in how many days can 20 men reap the same field?
Solution:
35 men can reap the field in 8 days
1 man can reap the field in (35 × 8) days [less men, more days]
20 men can reap the field in (35 × 8)/20 days [more men, more days]
= 14 days
Hence, 20 men can reap the field in 14 days.
EXAMPLE 2
A fort had provisions for 300 men for 90 days. After 20 days, 50 men left the fort. How long would the food last at the same rate?
Solution:
Remaining number of men = (300 - 50) = 250.
Remaining number of days = (90 - 20) days = 70 days.
300 men had provisions for 70 days
1 man had provisions for (300 × 70) days [less men, more days]
250 men had provisions for (300 × 70)/250 days
[more men, more days]
= 84 days.
Hence, the remaining food will last for 84 days.