What value will come in place of question mark (?) in the questions given below?

88 × 25 ÷ 4 + 6³ = ?

A root of equation $$({ax}^2+bx+c)$$ (where a, b and c are rational numbers) is 5 +3√3. What is the value of $$({a}^2+b^2+c^2) / (a+b+c) ? $$

The sum of square of two number is 68 and square of the different of them is 36. Then multiplication value of two is.

There are two temples, one on each bank of a river just opposite to each other. One temple is 54m high. From the top of this temple, the angles of depression of the top and the foot of the other temple are 30° and 60° respectively. The length of the other temple is; 

If 40% of (A+B) = 60% of (A-B) then $${2A-3B}\over {A+B}$$ is

Directions: Study the information given below and answer the questions that follow.
An article was bought for Rs. 5600. Its price was marked up by 12%. Thereafter it was sold at a discount of 5% on the marked price.

What was the marked price of the article?

A phone is sold for Rs. 860 at a loss of 20% for how much should it be sold gain 10%?

The L.C.M. of two numbers is 4 times their H.C.F. The sum of L.C.M. and H.C.F is 125. If one of the numbers is 100, then the other number is-