Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd word pair from the given alternatives.

Reflection of the point (3,-6) in the y-axis is

In the following question, select the missing number from the given series.34, 69, 140, 283, ?, 1145

If a + b = 17 and a - b = 9 then the value of (4a2 + 4b2) is,

If the length of the shadow of a vertical pole be √3 times the height of the pole, the angle of elevation of the sun is:­

What is the average of all the one digit, two digit and three digit natural numbers?

Find the products : 0.5 x 0.05 x 0.005 x 500

What is the value of S = 11x3x5 + 11x4 + 13x5x7 + 14x7 + 15x7x9 + 17x10 + ... upto 20 terms. Then what is the value of S?