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Start learning 50% faster. Sign in nowIf Rashi’s age be x years, then Shalini’s age be(x-4) years. According to question, => (x – 4)/x = 8/9 => 9x – 36 = 8x => x = 36 Therefore Shalini age = 36 – 4 = 32 years
The gas usually causing explosions in coal mines is-
The major component of honey is-
Which one amongst the following is not a Green House gas?
The acid used in lead storage cells is-
______is the process in which acids and bases react to form salts and water
Manganite is an ore/mineral of
Formation of ozone hole is maximum over
Which one amongst the following is not a Green House gas?
The element used for making solar cells is
The pH of a neutral solution is —