The given bar graph shows sugar imports of a country (in thousand tonnes) over the years. Study the graph and answer the question that follows.
The average imports (in thousand tonnes) of all the years is:
The following table shows the number of pages printed by 3 printers (P, Q and R) for 3 days.
| Day | P | Q | R |
| Monday | 100 | 130 | 200 |
| Tuesday | 120 | 145 | 160 |
| Wednesday | 180 | 85 | 120 |
What is the ratio of the total number of pages printed by printer P over the course of three days to the total number of pages printed by printer Q during the same three days?
The circumference of the base of the cylindrical vessel is 154 cm and its height is 49 mm. How many litres of water can it hold? (correct to three places of decimals, use \(\pi = \dfrac{22}{7}\))
The centres of two circles are 36 cm apart. If the radii of these two circles are 15 cm and 9 cm, respectively, then what is the sum of the lengths (in cm) of a direct common tangent and a transverse common tangent of these two circles?
6\(\sqrt{5}\)(\(\sqrt{7}\)+2)
6\(\sqrt{7}\)(\(\sqrt{5}\)+2)
6\(\sqrt{5}\)(\(\sqrt{5}\)+2)
6\(\sqrt{7}\)(\(\sqrt{7}\)+2)
Find the values of 'a' and 'b' for which the system of equations 3x+y=3 and (a-b)x+(a+b)y=3a+b-3 has infinite solutions.
\(a = 3, \ b = -\dfrac{2}{3}\)
\(a = -\dfrac{3}{2}, \ b = 2\)
\(a = 3, \ b = -\dfrac{3}{2}\)
\(a = 2, \ b = -\dfrac{3}{2}\)