Three different containers contain 130 liter, 442 liter and 234 liter of milk, respectively. What biggest measure can be used to measure all the containers exactly?

If two numbers are each divided by the same divisor, the remainders are respectively 3 and 4. If the sum of the two numbers be divided by the same divisor, the remainder is 2. The divisor is 

If a shopkeeper buys 2 oranges for Rs.5 and sells 3 for Rs.7 only, then what percentage of loss and loss did he gain?

Find the greatest value of k for which the 6-digit number 24312k is divisible by 6.

Find the greatest value of (a + b) such than an 8-digit number 4523a60 b is divisible by 15.

In a group of 35 people, 23 of them like coffee, 24 of them like tea and each person likes at least one of the drinks. How many like both? 

A number when divided by 5 leaves a remainder 3. What is the remainder when the square of the same number is divided by 5 ? 

Find the solution of 5x-7=12?