A jar of 10 litres contains 4 litres milk and another of 6 litres is filled completely with water.
6 litre mixtures are removed to second jar after pouring all the water of second jar in first. After
then the process is revised with 4 other jars of 6 litres filled with water completely. What will be
the amount of milk remained in 10 litre jar finally.
In every mixing process 4 part of milk is present in 10 part of mixture. Hence for this
process of 5 steps remaining milk in 10 litres jar is
4Χ(4/10)Χ(4/10)Χ(4/10)Χ(4/10)Χ(4/10)
=0.04096
The sum of all 2 digit divisors of the number obtained by the difference of a 3 digit number
of successive digits in decreasing order and a 3 digit number having same digits in reciprocal
order. Only 1, 2, 3, 4, 5, 6, 7, 8, 9 can be used as digits
Unit place =20(1+2+3+3+3+4)
Tens place=20(1+2+3+3+3+4) +32 ;( 32 is carry from units place)
Hundreds place=20(1+2+3+3+3+4) +35(carry from previous)
Similarly others
Some birds sit on a tree. Square root of total birds moves away from there. Twice of the
remaining birds are equal to the square of sum of birds flown away & square root of birds
flown away. How many birds was on tree.
Total cost of 2 rubbers and 3 pencils is greater than 20 rupee whereas total cost of
3 rubbers and 2 pencils is less than 24 rupee. If cost of pencil is less then 7 rupee then
for what prize of rubber and pencil total cost of 4 rubbers and 5 pencils is minimum
A bookseller says to a customer "The prize of water bag is greater than 400 rupees and I
shall give you a scheme of 50%+50%+50%+50% off after giving you a discount of 100 rupees."
If after then the cost of water bag is square root of its original value, then prize of
water bag is (Leaving paisa if any).