The bar chart given below shows the number of tea packets of 2 varieties sold by 5 shops during a particular week.

What is the average number of tea packets sold per shop, both the varieties take together?

What is the average of the first 13 odd numbers?

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

(16.05)² + (8.96)² - 7.03 × 3.98 =? + 197.99

115% of 4880 – 85% of 1640 = ?

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

468.02 + 79.91 ÷ 5.01 = ?²

The radius and height of a right circular cone are in the ratio 3: 4. If its curved surface area (in cm²) is 240 π, then its volume (in cm³) is:

The radii of two concentric circles are 17 cm and 25 cm. a straight line PQRS intersects the larger circle at the points P and S and intersects the smaller circle at the points Q and R. If QR = 16 cm, then the length (in cm.) of PS is 

A can do a work in 12 days while B can do the same in 20 days. If A work for ‘x’ days while B work for ‘x+4’ days then one-third of the work is complete. Find the value of x.