Find the ratio of total pens sold by D and E together to total product sold by A.

Total product sold by B and D together is how much more/less than total pencils sold by C and pens sold by D together.

Cost of each pencil is Rs 2 and cost of each pen is 50% more than that of pencil. Find the total revenue generated by shop E (in Rs).

The difference between total pens and pencil sold by all the shops is what percentage of twice the number to product sold by E.

If the average number of pencils sold by D, E and F is 10 and ratio of pen to pencil sold by F is 3:2, then find the total item (pens + pencils) sold by F.

In each of these questions a number series is given. In each series only one number is missing. Find out the missing number in the given series.

75, 82.5, 90.5, ?, 108, 117.5

In each of these questions a number series is given. In each series only one number is missing. Find out the missing number in the given series.

?, 206, 249, 296, 349, 408

In each of these questions a number series is given. In each series only one number is missing. Find out the missing number in the given series.

500, 12.5, ?, 62.5, 12500, 312.5

In each of these questions a number series is given. In each series only one number is missing. Find out the missing number in the given series.

42, 49, ?, 84, 112, 147

In each of these questions a number series is given. In each series only one number is missing. Find out the missing number in the given series.

?, 30, 90, 270, 810, 2430