Question 2. If the total surface area of a cube is 96 centimetre cube, its volume is

Question 3. From a point P, two tangents PA and PB are drawn to a circle with centre O. If OP is equal to the diameter of the circle, then angle APB is

Question 4. A chord 12 cm long is drawn in a circle of diameter 20 cm. The distance of the chord from the centre is

Question 5. 360 square cm and 250 square cm are the areas of two similar triangles. If the length of one of the sides of the first triangle be 8 cm, then the length of the corresponding side of the second triangle is

Question 6. If in a triangle ABC, angle ABC is 5 times the angle ACB and angle BAC is 3 times the angle ACB, then the measure of angle ABC is

Question 7. A can do a work in 20 days and B can do the same work in 30 days. In how many days can A and B together do the work?

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