Direction : What value should come in place question mark(?) in the following questions?

$$ 4{7\over 8}$$ - $$ 2{1\over 2}$$+$$ 1{3\over 4}$$=?

The least number that should be added to 35460 so that the sum is exactly divisible by 3, 4, 5 and 7 is:

If a certain number of two digits is divided by the sum of its digits, the quotient is 6 and the remainder is 3. If the digits are reversed and the resulting number is divided by the sum of the digits, the quotient is 4 and the remainder is 9. The sum of the digits of the number is 

For what value of ‘y’, $$ {x^{2}+{1\over12}{x}+y^{2}}$$ is perfect square?

There are two numbers such that the first number is four times of the second mumber. If their average is 65, then what is the second number?

Natu and Buchku each have certain number of oranges. Natu says to Buchku, “If you give me 10 of your oranges, I will have twice the number of oranges left with you”. Buchku replies,“If you give me 10 of your oranges, I will have the same number of oranges as left with you”. What is the number of oranges with Natu and Buchku, respectively?

If 30% of a = b, then b% of 50 is the same as:

The smallest number, which when added to 680621 gives the sum a perfect square number, will be