For the following questions answer them individually
If 20 men working 5 hours a day complete a work in 4 days. Then in how many days will 10 men working 10 hours a day finish the same work? Assume that all men work at same efficiency.
If length and breadth of a rectangle are increased and decreased by 10 percent respectively, then what is the percentage change in the area of rectangle?
Sita travels 5 km to her school everyday by bicycle. She leaves her house at 7:00 am and reaches at 7:30 am. Find her speed?
The circle-graph given here shows the spendings of a country on various sports during a particular year. Study the graph carefully and answer the questions given below it.
If the total amount spent on sports during the year was Rs. 2 crore, the amount spent on Cricket and Hockey together was :
The given pie chart shows percentage of students who opted for different subjects as additional subject.
If total number of students in the college is 5000, find the number of students who opted for maths or economics.
Two friends A and B went to fruit market to buy some fruits. At first shop B bought some mangoes at a per mango and A bought 9 mangoes more than B. At the next shop A bought some apples at a unit price of l b per apple and B bought 18 apples more than A. Later, it was found that the ratio of number of fruits bought by A and B is 4 : 7, respectively, whereas the amounts of money spent by them to buy fruits are the same. Find the ratio a : b.
What value will come in place of question mark (?) in the following equation?
$$ \frac{4}{2}+13\times4=?+\frac{60}{3}-33 $$
When 65 percent of a number is subtracted from itself, then the result becomes square root of 784. What is the number?