For the following questions answer them individually
Rohan borrows a certain sum at simple interest. Rate of interest is 3 percent per annum for first 3 years, 4 percent per annum for next 5 years and 6 percent per annum for next 7 years. If he paid Rs. 2485 as interest, then what is the sum borrowed?
The table given below shows the number of runs scored and number of balls played by 5 batsmen.
$$Strike rate = \frac{Number  of runs scored}{Number of balls played} \times 100$$
Which of the batsman has the highest strike rate?
What is the value of $$\frac{13 \times 14 + 25 \times 14 - 38 \times 14}{14 of 2 - 7}$$?
The perimeter of a rectangle is 30 cm. If the length of the rectangle is twice of its breadth, then what is the length of its diagonal?
In an examination out of 6000 students 60% boys and 90% girls are passed. If total pass percentage was 65%. then what would be the number of boys?
Shivam purchased two watches, first for Rs. 12000 and the second for Rs. 16000. He sold both the watches, first one at the profit of 10 percent and the second at a loss of 10 percent. What is the overall profit or loss?
The ratio of copper and zinc in brass is 7 : 3. How much amount of copper will be there in 200 kg of brass?
P alone can do a work in 10 days. Q alone can do the same work in 15 days and R alone can do the same work in 12 days. They jointly complete the work and earn Rs. 3000. What is the share of R?