Question
Which chemical is commonly used in the
tertiary treatment process for phosphorus removal?Solution
Aluminium sulfate (Alum) is often used in the chemical precipitation process to remove phosphorus by forming an insoluble precipitate called aluminium phosphate.
P spends 20% of his monthly income in travelling. He spends 25% of his monthly income on household expenses and spends 15% of his monthly income on fami...
`(601/49)xx(399/81)` ÷ `(29/201)` = ?
118.95 – 24.10 + (91.90 ÷ 22.89 × 12.14) = ?
- 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.)
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.)...
? = 500.24 + 1013.97 – 7.992 Â
(400.01% of 149.89) ÷ 49.97 = ?2 ÷ (95.98 ÷ 31.99)Â
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
{(√2305) % of 74.69} × 15.21 - 27.89 × 44.88 + 45.12% of 2399.87
3.992 + (3.01 × 2.98) + ? = 225.03
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