Question

qno.16

Find nth term of an AP if sum of its n terms is 3n^2 5n

Of the members of the sports team in a certain School 21 are in the basketball team 2016 the hockey team and 29 in the football team 14 play hockey and basketball 15 play hockey and Football 12 play football and basketball and it play in all the things first how many members are there in our second how many are in all basketball teams has how many are in only football team

11 math ncert hbse

6

All formula of this chapter

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ABCD is a rectangle and p q r s are mid point os the side ab bc cd and da respectively.  Show that the quadrilateral pqrs is a rhombus. 

If the selling price of an article is Rs,225 and the discount is 15%.find the marked price?

Ex.10.1 qn.13

I want model question paper of board exam 2019. Help me

Pcmb

Pcmb

O is the centre of larger circle, OP is the diameter of smaller circle and AB is the common tangent to the circles at P. if OCB is a straight line segment prove that PCxPC=OCxBC

Factorize , x^3-1/x^3-2x 2/x

The cost of two kg of apples and 1 kg of grapes on a day was found to be Rs. 160. After a month the cost of 4 kg apples and 2 kg grapes is Rs. 300. Represent the situation algebraically and graphically.

A tyre manufacturing company kept a record of the distance coveredbefore a tyre needed to be replaced. The table shows the results of 1000 cases.If you buy a tyre of this company, what is the probability that :(i) it will need to be replaced before it has covered 4000 km?(ii) it will last more than 9000 km?(iii) it will need to be replaced after it has covered somewhere between 4000 km and 14000 km

Important questions for cbse board exam 2019

5-6(66-77) plzzgive me answer