Sunil, Karim and Mohan are invested a certain amount in the ratio 1: 2: 3 and the ratio of investment at the end of year is 3 : 8: 18. Find the ratio of time for which they invested ?

Tina can complete a piece of work in 10 days. Mina is $$ 33 {1\over3}$$%  less efficient than Tina. How many days are required to both to complete the work.

Directions : What will come in the place of the question mark (?) in the following number series?

100 100   50  150  37.5 ?

Directions : What will come in the place of the question mark (?) in the following number series?

100  99  95  86  ? 

Directions : What will come in the place of the question mark (?) in the following number series?

1  2  6  15  31  ? 

Directions : What will come in the place of the question mark (?) in the following number series?

2  4  11  37  ? 

Directions : What will come in the place of the question mark (?) in the following number series?

217 344 513 730 ?

Direction: Study the line graph carefully to answer the following questions.
Line graph shows the production (in thousand units) and percentage of exported mobiles, computers and laptops.

In which of the following years was the production of Laptops exactly 40% of the total production of Mobiles, Computers and Laptops in that year?