UP POLICE MATHS QUIZ-31

In a class, there are 15 students at the age of 18 years, 12 students at the age of 23 years and 7 students at the age of 13 years. What is the average age of a student?

An article was bought for Rs. 2,500 . He allows a discount of $12 \%$ on its marked price and still gains $10 \%$. Find the marked price of the articles.

Babita has broken her FD of 15000 because she did not get much interest from there. Now she deposits a certain amount at $10 \%$ p.a. of simple interest and rests part at $15 \%$ p.a for 2 years in two different banks respectively. If she receives a total interest of 3600 on the deposited amount then find the sum deposited at the rate of $10 \%$ p.a.

If price of certain article reduced by 25% by how much percent consumption may be increased to keep expenditure same?

Vishal has an average batting score in 12 innings is 62 runs. He scores some runs in next innings and his average score increases by 5 runs. If he scores 20 runs more from the 13th innings, then find what would be his batting average of 13 innings?

Find the greatest four digit number which when divided by 24,36 and 45 give 9 remainder in each case.

A loss of Rs. 1,152 has to be divided among $A, B$ and $C$ in the ratio $7: 8: 9$, then what is the share of $A$ ?

A finish a work in 1500 days and B can do the same work in 1815 days. Working together, they will complete the same work in how many days?

A and B can complete a piece work in 20 days while B and C can do the same work in 25 days and C and A can do the work in 15 days then find in how many days A can complete the whole work?

Find the product of the sum of digits of the smallest 4-digit number divisible by 11 and the sum of the digits of smallest 4-digit number divisible by $13 .$