आंतरिक विमाओं (inner dimensions) 4.8 m × 4.8 m वाले एक कमरे की चारों ओर 20 cm मोटी दीवारें बनाई गई हैं। दीवारों की केंद्र रेखा (center line) की लंबाई की गणना कीजिए।

The cost of shuttering an RCC beam of 150 mm × 300 mm × 3 m long clear span and 150 mm bearing at the rate of ₹500 per m2 is:

Compute the expenses incurred for M20 grade concrete for a single cubic meter (1 m3) volume. Material costs amount to ₹20,000 per 10 m3, with labour costs standing at ₹10,000 per 10 m3. Additionally, include 1.5% of water charges and a contractor profit margin of 10%.