i5 academy

1) Determine whether each of the following relations are reflexive,     symmetric and transitive: (iii) Relation R in t…

1) Determine whether each of the following relations are            reflexive, symmetric and transitive: (ii) Relation…

1) (i)  Determine whether each of the following relations are         reflexive, symetric and transitive: (i) Relation…

Case study :  Adventure camps are the perfect place for the children to practice decision making for themselves   wit…

Case study 1) Two hoardings are put on two poles of equal heights standing on either side     of the road the angl…

Question 15:       The angle of elevation of a tower at a point is 45°. After going 45 m towards       the foot of…

Question 14:       An aero plane  at an altitude of 200 m observes angles of depression of      opposite points on …

Question 13:    A statue , 1.6 m tall, stands on the top of a pedestal. From a point on the    ground, the angle of…

Question 12:     The angle of elevation of the top of a hill from the foot of a tower is 60 0 and      the angle of…

Question 11:     The shadow of a tower standing on a level ground is found to be 40m longer     when the sun’s altitu…

Question 10:      A cube of side 6 cm is cut into a number of cubes, each of side 2 cm. Find      the number of cub…

Question 9:      Three cubes each of sides 5cm are joined end to end, then find the surface       area of the resul…

Question 8:        A medicine capsule is in the shape of a cylinder with two hemispheres stuck        to each of its…

Question 7 :      Two cubes each of volume 125cm3 are joined end to end to form a cuboid.        Find the total sur…

Question 6:      Three metallic solid cubes whose edges are 3cm, 4 cm and 5cm are melted       and formed into a si…

Question 5:  Find the sum of first 24 terms of an AP whose nth term is given by a n =3+2n.

Question 4:      Determine the arithmetic progression whose third term is 5 and the seventh  term is 9.

Question 3: If 2, x, 26 is an Arithmetic Progression. Find the value of x.

Question 2:             Find the 20 th term from the last term of the AP: 3, 8,13,….,253 Another method : Given :   …

Question 1:          How many term of the A.P. 24,21,18………… must be taken so that their    sum is 78?