A circular Tunnel of diameter 2 metre and length 1.4 kilometre is dug out find the cost of plqstwring it at rupees 150 per 100 metre square.explqin with diagram
Answers
Answered by
3
Answer:
the required amount for the plastering is 13200Rs
d=2 cm
r=1 cm
h=1.4 km= 1400 m
hence
CSA of tunnel = 2pi×r×h = 2×22/7×1×1400
= 8800cm²
hence
price = 8800/100 = 88cm²
so the price in rs = 88×150 = 13200 Rs
Similar questions