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Sodium reacts with water to form NaOH and H ₂ (hydrogen gas).
The average weight of 14 persons increases by 3.5 kg when a new person comes in place of one of them weighing 48 kg. The weight of the new person is.
Four persons ‘A’, ‘B’, ‘C’, and ‘D’ have different amounts with them. ‘D’ has twice the amount than that of ‘A’. The amount ‘B...
The average age of a class of 22 girls is 18 years. If 2 new girls having average age of 12 years join the class, then the average age of the class beco...
The average of three numbers P, Q and R is 1600. R is 75% more than P. The ratio of P and Q is 4:5 respectively. If R is 25% less than S, then find out ...
Average weight of a team of 13 persons is 33 kg. When one more person joins the team, the average weight of the team increases by 4 kg. Find the weight ...
Average weight of a team of 19 persons is 30 kg. When one more person joins the team, the average weight of the team increases by 3 kg. Find the weight ...
The average number of books sold by Viren in first 5 months is 3800 and in first 6 months is 4600. If the number of books sold by him in 7th ...
The average expenditure of a man for the first seven month is Rs.12000 and for the next five months is Rs.9000. If he saves 15000 in that year then find...
