Quantitative Aptitude - Arithmetic Ability Questions

Ajay bought 15 kg of dal at the rate of Rs 14.50 per kg and 10 kg at the rate of Rs 13 per kg. He mixed the two and sold the mixture at the rate of Rs 15 per kg. What was his total gain in this transaction ?

If the sum of the interior angles of a regular polygon is 720° then how many sides does it have?

The banker's gain on a bill due 1 year hence at 12% per annum is Rs. 6. The true discount

is:

Direction: What should come in the place of question mark (?) in the following number series?

9, 11, 16, 26, ?, 69

What is the least number consisting of five digits that is exactly divisible by 12, 18, 20 and 25?

Consider the following grouped frequency distribution:

  x           f

0-10       8

10-20     12

20-30     10

30-40      p

40-50      9

If the mean of the above data is 25.2, then what is the value of p?

Select the odd figure out of the given series.

A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest