For the following questions answer them individually
Solutions A and B contain acid and water in the ratio 4 : 3 and 9 : 5, respectively. Four litres of solution A is mixed with 5 litres of solution B. What is the ratio of acid and water in the resulting mixture?
The value of $$\left(\frac{3}{4}-\frac{1}{3}\div\frac{1}{3} of \frac{9}{5}\right) \div \left(\frac{7}{16} \div \frac{1}{2} of \frac{1}{5}\right)$$ of $$\frac{4}{15} - \frac{2}{3}$$:
Vishal decided to donate 12% of his salary to the PM Relief Fund. On the day of donation, he changed his mind and donated ₹4,200, which was 70% of what he had decided to donate earlier. His monthly salary is:
Shyamlal lent some money on simple interest. In each six months, He added interest in the principal amount. If he recovered 5% interest, then what will be the effective rate of interest annually (calculate upto two places of decimal)?
A sum of ₹8,400 amounts to ₹10,899 in $$3\frac{1}{2}$$ years at a certain rate per cent per annum, at simple interest. What will be the amount of the same sum at simple interest for $$4\frac{2}{3}$$ years at double the rate of interest?
Select the option that will improve the underlined part of the given sentence. In case no improvement is needed, select 'No improvement required'.
The captain and his sailors was surrounding by pirates.
Select the most appropriate option to fill in the blank.
Too much of television watching can ______ the thinking process of a child.
