Question
Zero group was introduced
bySolution
The zero group (noble gases) was introduced by William Ramsay after discovering elements like helium, neon, argon, krypton, and xenon. These elements were placed in a new group due to their inert nature.
[(82 × 162)/12] - 28 = ?
`sqrt(5476)` + 40% of 1640 = ? `xx` 4 - 2020
30% of 2200 +’?’ x 50 – 1020 = 11x 306 + (√ 2250 ÷ 0.1)
Evaluate: (768÷16)×(125÷25)−(81÷9)×12
(122 - 82 ) X ? = 90% of 500 - (90 - 25) X 2
276 ÷ 11.5 + 12 = ? x 3
56 × 18 + ? × 21 – 49 × 12 = 63 × 26
20 + 160/? × 20 = 420
132 × 3 ÷ 11 + 67 − ? = 64 ÷ 8 × 2
2 X 25 + (30% of 80) ÷ (10% of 120) = ?