UP POLICE MATHS QUIZ-38

How many 25 cm × 11.25 cm × 6 cm bricks will be required to construct an 8 m × 6 m ×22.5 cm wall?(ignoring other material used)

The average runs scored by Sunil in 17 innings is 37. What is his score in the 17th inning, thereby, increasing his average score by 9 runs?

The sum of two numbers is 59 and their product is 1150 . Find the sum of their squares.

Simplify the following expression.$\frac{0.8 \times 0.8 \times 0.8+0.6 \times 0.6 \times 0.6}{0.08 \times 0.08+0.06 \times 0.06-0.08 \times 0.06}$

The speed of a boat is $12 \mathrm{~km} / \mathrm{h}$ in still water. It goes $18 \mathrm{~km}$ downstream and comes back in a total time of $6 \frac{6}{7}$ hours. Find the speed of the stream (in $\mathrm{km} / \mathrm{h}$ ).

A sum of Rs.11236 is divided among A, B and C such that the ratio of the shares of A and B is 3 : 5 and the ratio of the shares of A and C is 4 : 7 . The share of B is:

A man takes 16 days to complete a project. A woman does the same work in 12 days. They started the work together on alternate days and the man worked on the first day. How much time will they take to complete the work?

The marked price of an article is Rs. x After allowing two successive discounts of 20% and 16% on the marked price, it is sold for Rs. 504. What is the value of x?

The expenditure on food is $35 \%$ of the income of a particular family. If the income is raised by $30 \%$, then how much percentage (to the nearest whole number) of food expenditure is less than the initial percentage to keep the food expenditure unchanged?

Ashok completes a journey in 7 hours. He travels the first half of the journey at the speed of 24 km/h and the second half of it at the speed of 32 km/h. The total distance of the journey is: