Side of square = 8.2 cm Perimeter of square = 4 × sides = 4 × 8.2 cm = 32.8 cm
Petrol in a tin = 20 l leakage = 3l. Remaining petrol = 20-3 = 17 Percent Petrol =17x100/20=85%
since 6 dozen pencil = 6 × 12 = 72 pencils 3 pencils cost = Rs 20 1 pencil cost 72 pencils cost = Rs 480 Ans
Evaluate :
= 8 - 4 = 4 Ans
Cube root of - 0.008 = -1 × 0.008 = -1 × = -1 × = -1 × .2 = 0.2 Ans.