WBCS Mains 2018 Official Paper-VI

If the product of two successive positive integers is $7482$, which is the greatest integer?

If $35\%\text{ of }200+\sqrt{x}=48\%\text{ of }550-10\%\text{ of }150$, then $x$ is equal to:

Ankur invested a sum of $\text{Rs. }16,800$ for four years in a financial scheme. The rate of interest in the scheme is $8\%$ per annum compounded yearly for the first two years and $10\%$ per annum for the 3rd and 4th years compounded yearly. What will be the cumulative compound interest at the end of 4 years?

$123456789\times 8+9$ is equal to:

If $C$ is the temperature on a Centigrade thermometer and $F$ is the temperature on a Fahrenheit thermometer, and they are related by $\frac{C}{5}=\frac{F-32}{9}$, find the numerical temperature whose value is exactly identical on both thermometers.