cbse-sample-papers-for-class-10-maths-sa2-paper-1-q14-to-q20-part-2

# Interactive video lesson plan for: CBSE sample papers for Class 10 Maths SA2 Paper 1 Q14 to Q20 (Part 2)

#### Activity overview:

CBSE sample papers for Class 10 Maths SA2 Paper 1 Q14 to Q20 (Part 2)
http://www.learncbse.in/cbse-sample-papers-class-10-maths/
00:01 Q14 Two dice are thrown at the same time. Find the probability that the sum of the two numbersappearing on the top of the dice is:
(i) 8 (ii) more than 10.
04:40 Q15 A right triangle whose sides are 15 cm and 20 cm is made to revolve about its hypotenuse.Find the volume and the surface area of the double cone so formed.
11:14 Q16 A spherical shell of lead whose external and internal diameters are 24 cm and 18 cm respectively is melted and recast into a right circular cylinder 37 cm high. Find the radius of the base of the cylinder.
14:19 Q17 Sum of the areas of two squares is 400 cm2. If the difference of their perimeters is 16 cm, find the sides of the two squares.
17:54 Q18 A two-digit number is such that the product of the digits is 35. When 18 is added to thisnumber, the digits interchange their places. Determine the number
23:00 Q19 Each year a tree grows 5 cm less than it did the preceding year. If it grew by 1 m in the firstyear, in how many years will it have ceased growing?
25:29 Q20 The angle of elevation of a jet aircraft from a point P on the ground is 60°. After a flight of15 seconds, the angle of elevation becomes half of the previous angle. If the jet is flying at a speed of 720 km/hr, find the constant height at which the jet is flying.

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