Question

3 4657.3 12. 12. How many cubic yards of concrete are needed to pour a slab 60' x 80' × 5" thick? 13. 13. How many gallons of paint are required to paint one side of a block wall of the following dimensions: 6'x 172? The paint being used will cover 200 ft per gallon. 14. 14. Compute the gallons of sealer required to seal a floor 120 x 250. The sealer being used will cover 175 ft per gallon. 15. How much concrete is required to pour the slab 15. shown below? 15 m Thickness 10 cm Copyright Goodheart W

Answer 1

Answer-12 Volume of slab = 60' x 80'x5' - V= 2000 ft 3 so volume of concrete required in yard is V= 2000 x 0.037 (yard) { v= 74 yard Ang-13 surface area of block wall (A) A- 6' x 1721 = 1032 ft² No. of gallons required (N) ► Na ho - 1932 N = 5.16 gallons) Ans- 14 Area of floor (A) A 120'x 250' = 3x10 4 ft² No. of gallons (N) I N A = 3x10 = [N= 172 gallons) 3 175 1117 POP Ans-17 volume of Column CV) = 7 d² h V = 7 ( 20 ) 2 x (18.25)' ft 3 TV: 39.82 43 volume in yard V= 39.82 x 0.037 yard3 = 1.47 yard 3 [= 2 yard