UP POLICE MATHS QUIZ-14

A batsman has an average run in 16 innings. He scored 80 runs in the 17th innings, increasing his average by 2. His average of runs after 17th innings is

$70 \div 14+[22-\{20-(28 \div 7 \times 3)\}]=?$

The product of two numbers is 216. If the HCF is 6, then their LCM is -

A purchased an item for ₹ 12,300 . He spent ₹ 200 as cartage. He sold it to B at $10 \%$ profit, who sold it to C at $6 \%$ profit. $\mathrm{C}$ marked it at ₹2,915 higher than his cost price and allowed $10 \%$ discount to a customer. Find the profit earned by $\mathrm{C}$ (in ₹).

In 2 years at simple Interest the Principal increases by $12 \%$. what will be the compound interest earned (in Rs.) on Rs 90,000 in 2 years at same rate?

An alloy contains 40% of silver, 30% of copper and 30% of nickel. How much silver (in kg) should be added to 30 kg of the alloy so that the new alloy contains 50% of silver?

Kamal starts a business investing Rs. 9,000 . After five months, Sameer joined with a Capital of Rs 8,000 . If at the end of the year, they earn profit of Rs. 6,970, then what will be the share of sameer in the profit?

A person travels one-third of a certain distance at a speed of 45 km/h, and the remaining distance at a speed of 60 km/h. If he travels this distance at a uniform speed taking the same time, then what will be his speed (in km/h)?

Sukhi and Deepu can complete certain task in 24 days and 30 days respectively. They worked together for 11 days. Chitra completed the remaining task in 7 days. Working together, Sukhi and Chitra will complete $33.33 \%$ of the same work in:

The ratio of the radius of base to the height of a cylinder is $2: 3$. If the volume of the cylinder is $1617 \mathrm{~cm}^{3}$, then what is the curved surface area of the cylinder? (Take $\pi=\frac{22}{7}$ )