What is the angle between the two hands of the clock at 8:24 pm?

A student got 30% marks in an examination and failed because he got 12 marks less. Another student got 40% marks in the same examination and got 18 marks more than the minimum passing marks. Must have marks to pass

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

15 20 50 165 680 ? 

The ratio between the third proportional of 12 and 30 and mean proportional of 9 and 25 is

Pie chart shows the percent of money spent by family on various item during 1999. Study the graph and answer these questions.

The ratio of the total amount of money spent on housing to that spent on education was

Directions: The bar chart given below shows the percentage distribution of the production of various models of a mobile manufacturing company in 2007 and 2008. The total production in 2007 was 35 lakh mobile phones and in 2008 the production was 44 lakh. Study the chart and answer the following questions.
Percentage of six different types of mobiles manufactured by a company over two year

If 85% of the D type mobile produce in each year were sold by the company, how many D type mobiles remained unsold?

The ratio of investment of two partners is 11: 12 and the ratio of their profits is 2: 3. If A invested the money for 8 months, find for how much time B invested his money?

The ratio of the length of the parallel sides of a trapezium is 3: 2. The shortest distance between them is 15 cm. If the area of the trapezium is 450 cm.2, the semi-sum of the length of the parallel sides is