New no. of boxes=101n/100
increase=4000/n-400000/101n=4000/n*1/101
ans=4000/n*1/101/4000/n
=1/101*100
=1%
Tanyas grandfather was 8 times older to her 16 years ago. He would be three times of her age 8 years from now. Eight years ago what was ratio of Tanyas age to her grandfather?
If the area of a square has increased by 60%, by what percentage has its side increased?
Peter and Paul were friends. After six years Paul will be twice as old as Peter was when peter was as old as Paul. If sum of their ages is 36 find the age of Peter?
Which one of the following has the highest standard deviation?a 1,0,1,0,1b 1,1,1,1,1c -1,-1,-1,-1,-1
In a 60 liters of mixture of spirit and water is 7 %. In order to make water 19%, how much water should be added?
Ten boxes are there. Each ball weighs 100 gms. One ball is weighing 90 gms. i) If there are 3 balls (n=3) in each box, how many times will it take to find 90 gms ball? ii) Same question with n=10 iii) Same question with n=9
There are two square rooms. Both are of same height. The second room is 5m longer than the first room. The rate for papering the walls is 10 paisa per square meter. The total cost for papering the rooms is Rs 60 and Rs 80. What is the height of the rooms?
There is a point P on the circle. A and B started running in two constant different speeds. A in Clockwise and B in Anti-clockwise. A meet B First time 500m in Clockwise from P then second time 400m Anti-clockwise from P. B is yet to complete one round, What is the circumference of the circle?
What is 5x - x^2 = 0 ?
What is the sum of all the four digit numbers formed using the digits 0, 1, 2 and 3. None of the two digits should be repeated?
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