Let the side of a square be=10s Then old side of the square is =10s x 10s = 100s2 Then, New side of the square will be = 15s x 15s = 225s2 Therefore, required % change will be = 125 x (100/100) = 125
Two pipes A and B can fill a tank in 15 hours and 20 hours, respectively. Another pipe C can empty the tank in 30 hours. If all three pipes are opened t...
A boat can travel 36 km upstream in 6 hours. The same boat can travel 63 km downstream in 3 hours. What is the speed of the boat in still water?
A person sells two items, X and Y. The marked prices of X and Y are 25% and 40% higher than their cost prices, respectively. After a 10% discount on bot...
If the ratio of boys to girls in a class is 3:4 and the total number of students is 56, how many boys are there?
In a triangle ABC, the internal bisector of ∠ A meets side BC at D. If AB = 6 cm, AC = 9 cm, and BC = 12 cm, what is the length of BD?
A solid sphere is perfectly inscribed inside a cube, and a right circular cylinder is placed inside the cube such that it touches all the faces of the c...
1. किसी व्यक्ति का वेतन पहले 10% घटा दिया जाता हैं तथा उसके...
How many sides does a regular polygon with each interior angle measuring 140° have?
A sum of ₹25000 is invested in two parts, one at 8% and the other at 10%. The total interest earned after a year is ₹2300. How much was invested at ...
A sum of Rs. 4,000 becomes Rs. 6,912 in 3 years at a certain rate of interest compounded annually. What is the rate of interest?
