For the following questions answer them individually
There were 984 mangoes on 12 trees of a mango-garden. What will be the average number of mangoes per tree after taking down 26 mangoes in average from 5 trees and 38 mangoes in average from 7 trees ?
The average age of a class is 15.8 years. The average age of the boysin the class is 16.4 years, while that of the girls is 15.4 —Whatis the ratio of boysto girls in the class ?
A man sells an article at a profit of 25%. If he had bought it at 20% less and sold it for ÂĄ 10.50 less, he would have gained 30%. Find the costprice (in rupees) ofthe article.
Rahul had 200 mangoes. He sold 30 mangoes at 25% gain, 40 mangoes at 20% gain, 60 mangoes at 10% gain and 70 mangoes at 10% loss. His net gain/loss percentageis
If A’s salary is 33 $$\frac{1}{3}$$% less than B’s salary, by how much percentageis B’s salary more than A’s ?
An aeroplane covers a certain distance at a speed of 240 km/hr in 5 hours. To cover the same distance in 1 $$\frac{2}{3}$$ hours, it must travel at a speed (in km/hr) of
â‚ą 25,000 is borrowed at compound interest at the rate of 3% for the first year, 4% for the second year and 5% for the third year. The amount to be paid after 3 years is
The perimeter of an isosceles triangle is 18 cm.Its lateral side and the base are in the ratio 7 : 4. The area of the triangle is