3 dozen eggs are bought for * 63. Find the cost of 132 eggs. 5. 10 men can plough a field in 9 hours. In how many hours will 15 men plough it? 130
Answers
Answer:
cost of 132 eggs = 231
time taken by 15 men to plough the field = 13.5 hours
Step-by-step explanation:
no. of eggs in 1 dozen = 12
no. of eggs in 3 dozens = 12*3 = 36
cost of 36 eggs = 63
cost of 1 egg = cost of eggs/ no. of eggs
=63/36
=1.75
cost of 132 eggs = 132*1.75
=231
hours taken by 10 men to plough a field = 9
hours taken by 1 man to plough a field = 9/10
=0.9
hours taken by 15 men to plough the field = 0.9*15
=13.5 hours
3 dozen eggs = 36 eggs
if 3 dozen cost ₹63
therefore 1 dozen = 63/3=21
132 eggs= 132/12= 11 dozen
so cost of 11 dozen eggs= 21×11 =₹231
it's the case of inverse proportion so:
9/15 x 10=9/3 x 2=6 hours for 15 men to plough
9 men x 10 hours = 1/90
90/15=6
hope both the answer are very useful and helpful
pls mark brainliest if they are.