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The ratio of the l, b, and h = 5: 4: 3 l=5x b=4x h=3x surface area of cuboid = 2(lb +bh +hl) 1500= 2(20x2+12x2+15x2) 750=47x2 x2=750/4 =15.96 x=4 so now the volume of the cuboid = 60×64=3840 cubic cm.
46.2 × 8.4 × 3 + ? = 1200
63- [22-{24 ÷ 3-(9-15 ÷ 5) ÷ 6}]=?
14 × 6 + 9 × 11 = (82 – 3) × ?
(12% of 1250 + 85% of 400) x 10 = ?2
∛21952 × 44 = ? × 14
`sqrt(5476)` + 40% of 1640 = ?`xx` 4 - 2020
654.056 + 28.9015 × 44.851 – 43.129 = ?
212 + 14 × 23 – 28 × 15 = ?
?3 - 25 × 11 = 30 - 15 × 12