Quantitative Aptitude - Arithmetic Ability Questions

What is the value of 10.2+10.02+10.002+... upto 9 terms

If 1/(tanA + cotA) = x, then value of x is

Direction: What should come in the place of question mark (?) in the following number series? 24, 25, ?, 41, -8, 73

If one more cobbler is hired the output of a shoe making unit will increase from 50 pairs of shoes to 55 pairs per day, but then the shoe making unit will have to reduce the price of a pair of shoes from Rs 3200 to Rs 3000 per pair to sell the additional output, the marginal revenue product of the last cobbler is

There are 90 coins, comprising of 5 and 10 paisa coins. The value of all the coins is Rs. 7. How many 5 paisa coins are there?

Chords PQ and RS of a circle extended externally intersect at point T. Length of the segment PT, if lengths of QT, RT and ST are 9 cm, 18 cm and 6 cm respectively, is

What least number must be subtracted from 210, so that the sum is completely divisible by 11?

38% of a number is 133. What is the number?