Ambika got 99 percent marks in mathematics, 76 percent marks in Hindi, 61 percent in English, 84 percent in science and 95 percent in social science. If each subject carries 100 marks, then find the percentage of marks obtained by Ambika in aggregate of all subjects.

Give chapter 5 lines and angles own questions for board exams 

Find the following percentage value:

1) 15% of 250.

Find the angle which is equal to its supplement.

Find the breadth of the rectangle whose length is 70 cm and perimeter 200 cm.

Convert 1 gallon into liters.

a. 3.05 liters

b. 3.78 liters

c. 4.05 liters

d. 4.78 liters