CBSE Class 7/8/9/10 - English - Test you Vocabulary and Grammar

VOCABULARY & GRAMMAR CHECK

MCQs

Q1: The American season 'Fall' is known in England as

 (a) Spring 

 (b) Autumn 

 (c) Winter

 (d) Summer

Q2: The weather is atrocious. The underlined word means

 (a) Very pathetic 

 (b) Very artistic 

 (c) Highly automatic 

 (d) Very unpleasant

Q3:  A synonym of Metamorphosis is

(a) Great shape 

(b) Transformation 

(c) Superior organization 

(d) Irregular formation

CBSE Class 10 - Social Science - Sample Question Paper (SA2) by KVS - 2014

CBSE Class 10 - Social Science- Sample Question Pape-2014

CBSE Class 10 - Maths - Design of Sample Question Paper (SA2)

CBSE Class 10 - Maths - Modified Syllabus, Question Paper Design

Class 10 - Biology - How do Organisms Reproduce? (Fill In Blanks)

Class 10 - Biology - How do Organisms Reproduce? 

Cross-section of Flower
credits: clker.com

Fill in the Blanks

[Asexual Reproduction in Plants]

1. The ability of plant cells to give rise to whole plant is called as ____.

2. In Asexual reproduction the gametes are ______ (formed/not formed).

3. In yeasts, ____ is the most common type of asexual reproduction.

4. In grafting, the union occurs through formation of ____ between the two grafts.

5. The process of formation of spores is called ____.

6. Asexual reproduction method in spirogyra is called _______.

7. Orchids and Ornamental Plants are generally reprodued asexually. One of the common vegetative propagation technique used for these plants is _______.

[Sexual Reproduction in Plants]

CBSE Class 8 - Science - CH9 - Reproduction in Animals (MCQs)

Reproduction in Animals 

(MCQs)

Q1: The male gametes are called ...

(a) Ovaries
(b) Sperms
(c) Zygote
(d) Eggs


Q2: The female gametes are called ...

(a) Ovaries
(b) Sperms
(c) Zygote
(d) Eggs


Q3: The female gametes are produced by?

(a) Ovaries
(b) Sperms
(c) Zygote
(d) Testes

CBSE Class 10 - March 2014 English (Comm) Question paper Format

CBSE Class 10 - English (Comm)- March 2014 - Modified Syllabus, Question Paper Design

CBSE Class 10 - Maths - CH 14 - Statistics (Ex 14.1)

Statistics

(NCERT Ex 14.1)

Q1: A survey was conducted by a group of students as a part of their environment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house.


Answer:

We use the following relation to find the class mark (x_i) for each interval:

Class mark (x_i) =

Calculating x_i and f_ix_i as follows:

Number of plants	Number of houses(fi)	xi	fixi
0 -2	1	1	1 ☓ 1 = 1
2 -4	2	3	2 ☓ 3 = 6
4 -6	1	5	1 ☓ 5 = 5
6 -8	5	7	5 ☓ 7 = 35
8 - 10	6	9	6 ☓ 9 = 54
10 -12	2	11	2 ☓ 11 = 22
12 - 14	3	13	3 ☓ 13 = 39
Total	20		162

From the table, it is observed that

Σ f_i = 20

Σ f_ix_i = 162

Mean , x =

= = 8.1

Therefore, mean number of plants per house is 8.1.

Here, direct method has been used as the values of class marks (x_i) and f_i are small.


Q2: Consider the following distribution of daily wages of 50 worker of a factory.

Daily wages(in Rs)	100 - 120	120 - 140	140 - 160	160 - 180	180 - 200
Number of workers	12	14	8	6	10

Find the mean daily wages of the workers of the factory by using an appropriate method.

Answer: