Quantitative Ap...

In class IX, the average of marks in science for six students was 48. After result declared, it was found in case of one student, the marks 45 were misread as 54. The correct average is:

Ragini and Raghav can make a carpet respectively in 3 days and 12 days more than the time taken if both of them worked together. In how many days can Ragini alone make the carpet.

If the mode of the scores 10, 12, 13, 15, 15, 13, 12, 10, x is 15, then what is the value of x?

PT is a tangent drawn from P, given outside the circle, with center O touching the circle at Q. If PQ = 30 cm and the diameter of the circle is 32 cm, then what is the length of OP?

3/5 of a square of a number is 126.15 then the number is:

The greatest number of four digit which is divisible by 15, 25, 40 and 75 is:

Ramu works 4 times as fast as Somu. If Somu can complete a work in 20 days independently, then the number of days in which Ramu and Somu together can complete the work is:

At what time will Rs. 1000 amounts to Rs. 1331 at 20% per annum compounded half-yearly?

Given that △ABC ∼ △DEF, if BC = 12.5cm and EF = 10cm, then the areas of △ABC and △DEF are in the ratio of: