Persons killed in industrial accidents
Person killed in coal mines
Q1. The number of persons killed in coal mines in 2006 was what percent of those killed in industrial accidents in that year?
Q2. In which year, minimum number of persons killed in industrial accidents and coal mines together?
Q3. In which year, maximum number of persons were killed in industrial accidents other than those killed in coal mines?
Q4. In which year, minimum number of persons were killed in coal mines other than those killed in industrial accidents?
Q5. In the figure given below, the perimeter of the circle is 220 cm. What is the area of the shaded portion in cm^2?
Q6. If the incentre of an equilateral triangle lies inside the triangle and its radius is 3 cm, then the side of the equilateral triangle is :
(b) 6√3 cm
(d) 6 cm
Q7. D is a point on the side BC of a triangle ABC such that AD⊥BC.E is a point on AD for which AE : ED = 5 : 1. If ∠BAD=30° and tan (∠ACB)= 6 tan (∠DBE), then find ∠ACB.
(a) 30 °
(b) 45 °
(c) 60 °
Q8. The tangents drawn at P and Q on the circumference of a circle intersect at A. If ∠PAQ=68°, then the measure of the ∠APQ is
Q9. The external bisector of ∠ABC of ∆ABC intersects the straight line through A and parallel to BC at the point D. If ∠ABC=50°, then measure of ∠ADB is :
Q10. AB is a diameter of a circle with centre at O. DC is a chord of it such that DC || AB. If ∠BAC=20°, then ∠ADC is equal to
Q11. Suppose ∆ABC be a right-angled triangle where ∠A=90° and AD⊥BC. If Area (∆ABC) = 40 cm2, Area (∆ACD)= 10 cm^2 and AC = 9 cm, then the length of BC is :
(a) 12 cm
(b) 18 cm
(c) 4 cm
(d) 6 cm
Q12. Two circles touch each other externally at P. AB is a direct common tangent to the two circles, A and B are points of contact and ∠PAB=35°. Then ∠ABP is :
Q13. X and Y are centres of circles of radii 9 cm and 2 cm respectively, XY = 17 cm. Z is the centre of a circle of radius r cm which touches the above circles externally. Given that ∠XZY=90°, the value of r is:
(a) 13 cm
(b) 6 cm
(c) 9 cm
(d) 8 cm
Q14. I is the incentre of a triangle ABC. If ∠ABC=65° and ∠ACB=55°, then the value of ∠BIC is :
Q15. The angle of a triangle are in Arithmetic Progression. The ratio of the least angle in degrees to the number of radians in the greatest angle is 60∶π. The angles in degrees are :
(a) 30°, 60°, 90°
(b) 35°, 55°, 90°
(c) 40°, 50°, 90°
(d) 40°, 55°, 85°