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Start learning 50% faster. Sign in nowDobson is the most common unit for measuring ozone concentration. One Dobson unit is the number of molecules of ozone that would be required to create a layer of pure ozone 0.01 millimetres thick at a temperature of 0 degree Celsius and pressure of 1 atmosphere.
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
24.96% of 380 + ? – 169.99 = 149.99% of 80
( 22.01% of 899.80 ) × 15.99 = ? 2 + 27.98 × 2400 ÷ 800
(239.89 ÷ 3.89) – (144.01 ÷ 5.73) = ?2
√? + √626 × 13.998 - 6.02 × 2.97 = 345.995
[{(√785) % of 449.85}/(35.89 × 7.14 + 849.89 ÷ 5.12 + 199.78% of 41.09)] = ( 1/? )
136.02 + 80.004 - 9.892 + {(30.02)2 /(15.02 × 1.98)} of 18.22% = ?
3.01√726 + 19.956% of 881.0954 + 25.08% of 2200.96 = ?
24.99% of 1619.78 + (1259.84 ÷ 12.24) = ? × 16.98
