SSC CHSL 2016 (Tier-I) Question Paper (07-Feb-2017) ( Shift 3)

A wholesaler sells a watch to a retailer at a gain of $20\%$ and the retailer sells it to a customer at a loss of $10\%$. If the customer pays $\text{Rs }874.8$, what had it cost the wholesaler?

If $\sqrt{\frac{1+\cos A}{2}}=x$, then find the value of $x$.

$P$ and $Q$ can do a project in $150$ and $100$ days respectively. In how many days can they complete $60\%$ of the project if they work together?

If $\sec A+\tan A=x$, then find the value of $x$.

A cone of height $12\text{cm}$ and diameter $10\text{cm}$ is mounted on a hemisphere of the same diameter. What is the volume of the solid thus formed?