RRB GROUP D QUANT QUIZ

A sells a watch to $\mathrm{B}$ at a profit of $15 \%$ B sells the same watch to $\mathrm{C}$ at loss of $10 \%$. If $\mathrm{A}$ has sold the watch at the cost at which C purchased it from B, what would have been the profit/loss $\%$ for A?

One fifth of a journey is covered at a speed of $30 \mathrm{~km} / \mathrm{h}$, one-fourth of the journey at a speed of $25 \mathrm{~km} / \mathrm{h}$ and the rest at $60 \mathrm{~km} / \mathrm{h}$. What is the average speed (in $\mathrm{km} / \mathrm{h}$ ) correct to one decimal place) for the whole journey?

$\mathrm{ABC}$ is a triangle with $\overline{\mathrm{AC}}=\overline{\mathrm{BC}}$ and $\angle \mathrm{ABC}=50^{\circ} .$ The side $\overline{\mathrm{BC}}$ is produced to $\mathrm{D}$ so that $\overline{\mathrm{BC}}=\overline{\mathrm{CD}}$. Then $\angle \mathrm{BA} \mathrm{D}$ is:

$A$ and $B$ undertook to do a piece of work for Rs. 72,000. A alone could do it in 16 days and $B$ alone in 12 days. With the assistance of $C$, they can finish the work in 5 days. then the $C^{\prime}$ s share of the money is:

5 men and 8 women can do a piece of work in 12 days. 3 men and 7 women can do the same work, in 16 days. In how many days work will be completed if work is done by 8 men and 4 women?

The slant height and base diameter of a conical tomb are $25 \mathrm{~m}$ and $14 \mathrm{m}$ respectively. Find the cost(in rupees) of white-washing its curved surface at the rate of Rs 210 per $100 \mathrm{~m}^{2}$.

The ratio of Rate of filling of two Pipes $A$ and $B$ is $5: 4$. If together they can fill $80 \%$ of Tank in 24 minutes. Then in how many does B alone can fill the Tank?

If $\sqrt{x}+\frac{1}{\sqrt{x}}=\sqrt{19}$, then value of $x \sqrt{x}+\frac{1}{x \sqrt{x}}$ .

The divisor is 24 times the quotient and 8 times the remainder. If the quotient is 18 , then the dividend is: