Question
Three types of wheats costing Rs. 60/kg, Rs. 80/kg and
Rs. 100/kg are mixed in the ratio of 3:2:1 respectively. Find the average cost of wheat per kg. Answer should be round off up to nearest integer.Solution
Let the quantities of wheat costing Rs. 60/kg, Rs. 80/kg and Rs. 100/kg be '3p' kg, '2p' kg and 'p' kg, respectively. So, average cost of wheat per kg = {(60 X 3p) + (80 X 2p) + (100 X p) } Γ· (3p + 2p + p) = (180p + 160p + 100p) Γ· (6p) = (440/6) ~ Rs. 73/kg
√3598 × √(230 ) ÷ √102= ?
15% of 2400 + (β 484 β β 256) = ?
(13)2Β - 3127 Γ· 59 = ? x 4
6269 + 0.25 × 444 + 0.8 × 200 = ? × 15
...(53 + 480 Γ· 4)% of 20 = ?% of 70
Find the simplified value of the following expression:
62 + 122 Γ 5 - {272 + 162 - 422}
(15 Γ 225) Γ· (45 Γ 5) + 480 = ? + 25% of 1240
β [? x 11 + (β 1296)] = 16
11 Γ 25 + 12 Γ 15 + 14 Γ 20 + 15 = ?