find the cost of cementing the crossroads in figure (b) and figure (c) part of question 7 , if the cost per cm is ₹7.80
please help
Attachments:
Answers
Answered by
3
Answer:
b) ₹ 239.38 c) ₹ 179.712
Step-by-step explanation:
b)Total area to be cemented = ( (6.3×3.3)+(6.3×3.3) ) -3.3×3.3
= (20.79+ 20.79) - 10.89
= 41.58-10.89
= 30.69 cm²
cost of 1 cm² = ₹7.80
cost of 30.69cm² = ₹239.382
c) same as above part
area to be cemented = 23.04 cm²
cost of cementing = ₹179.712
Similar questions