CBSE Class 10 - Maths - Number Systems - Problems and Solutions (#cbsenotes)

Number Systems

Problems and Solutions

(CBSE Class 10)

Q1: Find HCF and LCM of 126 and 156 using prime factorization method.

Answer: HCF of 126 is:

           126
           ╱╲
          2  63
             ╱╲
            3 21
              ╱╲
             3  7

∴ 126 = 2 × 3 × 3 × 7 = 2 × 3² × 7

    HCF of 156 is:

           156
           ╱╲
          2 78
            ╱╲
           2 39
             ╱╲
            3 13

∴ 156 = 2 × 2 × 3 × 13 = 2² × 3 × 13  

∴ HCF (126, 156) = product of common factors with lowest power

= (2ⁱ × 3ⁱ) = 6

CBSE Class 6 Maths - Playing With Numbers - NCERT Exercise 3.1 (#ncertSolutions)

Playing With Numbers
NCERT Exercise 3.1

CBSE Class 6 Maths 

Q1. Write all the factors of the following numbers :
(a) 24
(b) 15
(c) 21
(d) 27
(e) 12
(f) 20
(g) 18
(h) 23
(i) 36

Answer:
(a) 24 = 1 × 24
= 2 × 12
= 3 × 8
= 4 × 6
= 6 × 4
∴ Factors of 24 = 1, 2, 3, 4, 6, 12, 24

(b) 15 = 1 × 15
= 3 × 5
= 5 × 3
∴ Factors of 15 = 1, 3, 5, 15

(c) 21 = 1 × 21
= 3 × 7
= 7 × 3
∴ Factors of 21 = 1, 3, 7, 21

(d) 27 = 1 × 27
= 3 × 9
= 9 × 3
∴ Factors of 27 = 1, 3, 9, 27

Career After 12 - Paramedic Courses (Pharmacy and Medical Lab Technicians) (#careerAfter12)

Career After 12 - Paramedic Courses (Pharmacy and Medical Lab Technicians)

A pharmacist not only delivers drugs or medicines as per the prescription given by a doctor but also deals in production of drugs, development methods and quality control.

As a medical laboratory technician, one works in various fields of specialization such as

•   Radiography (imaging techniques like X-ray, MRI, CT, Ultrasound, etc.)
•   Radiotherapy (radiation treatment)
•   Anaesthesia Technology
•   Medical Record Technology
•   Electrophysiology and Pulmonary Technology
•   Dialysis Technology
•   Diabetic Education and Podiatry Technology

Delhi Institutes Offering Pharmacy Courses:

① Bachelor in Pharmacy (B.Pharma)
  Institute:    Delhi Institute of Pharmaceutical Sciences & Research (DU)
  Eligibility:  10 + 2 with PCB 60%
  Duration:     4 yrs
  Mode of Entry:  On Merit
  Website:      www.dipsar.ac.in

② Diploma in Pharmacy (B.Pharma)
  Institute:    Delhi Institute of Pharmaceutical Sciences & Research (DU)
  Eligibility:  10 + 2 with PCB 60%
  Duration:     2 yrs
  Mode of Entry:  On Merit
  Website:      www.dipsar.ac.in

③ Diploma in Pharmacy (B.Pharma)
  Institute:    Directorate of Training & Technical Education (Polytechnics)
  Eligibility:  10 + 2 with PCB 45% and English
  Duration:     2 yrs
  Mode of Entry:  Entrance Test
  Website:      www.cetdelhi.nic.in  & www.cetdelhiexam.nic.in

CBSE Class 10 - Biology - Life Processes (Nutrition) - Q and A (#cbsenotes)

Life Processes (Nutrition)  

Q and A

CBSE Class 10 - Biology 

Q1: Define nutrition.

Answer: The process of taking in food or consuming food and utilising it is called nutrition.


Q2: What are the modes of nutrition?

Answer:
① Autotrophic
② Heterotrophic


Q3: What is a nutrient?

Answer: A nutrient is a substance in food that performs a physiological function in the body. A nutrient gives energy and promotes growth and development of the body.


Q4: What happens if there is a deficiency of a particular type of nutrient? Give an example.

Answer: There may be a deficiency disorder. e.g. deficiency of Vitamin C causes capillaries break easily and often leads to bleeding of gums.


Q5: Name the different classes of nutrients.

Answer: Carbohydrates, Lipids, Proteins, Minerals, Vitamins and Water.

CBSE Class 6 Maths - Ch2 Whole Numbers - NCERT Ex 2.3 (#cbsenotes)(#ncertanswers)

Whole Numbers

Chapter 2: Whole Numbers  

NCERT Exercise 2.3 

CBSE Class 6 Maths - Chapter 2

Q1: Which of the following will not represent zero:

(a) 1 + 0
(b) 0 ✕ 0
(c)

	0
	2

(d)

	10 - 10
	2

Answer:
(a) [∵ 1 + 0 = 1]


Q2: If the product of two whole numbers is zero, can we say that one or both of them will be zero? Justify through examples.

Career After 12th - Delhi Institutes Offering Courses In Paramedics (Physiotherapy and Other Therapy Courses) (#careerAfter12)

Delhi Institutes Offering Courses In Paramedics
(Physiotherapy, Speech Therapy,
Occupational Therapy,
Prosthetics & Orthotics)

Career After 12th

Various therapeutic courses are available at degree or diploma level. Broadly following categories of therapeutic courses paramedical courses are available:

• Physiotherapy
• Occupational therapy
• Prosthetics and Orthotics
• Optometry
• Audiology and Speech therapy

CBSE Class 6 Maths - Ch2 Whole Numbers - NCERT Ex 2.2 (#cbsenotes)(#ncertSolutions)

Whole Numbers - NCERT Ex 2.2

CBSE Class 6

Q1. Find the sum by suitable rearrangement:
(a) 837 + 208 + 363
(b) 1962 + 453 + 1538 + 647

Answer:
(a) 837 + 208 + 363
= (837 + 363) + 208
= 1200 + 208
= 1408

(b) 1962 + 453 + 1538 + 647
= (1962 + 1538) + (453 + 647)
= 3500 + 1100
= 4600


Q2. Find the product by suitable rearrangement:
(a) 2 × 1768 × 50 
(b) 4 × 166 × 25 
(c) 8 × 291 × 125
(d) 625 × 279 × 16 
(e) 285 × 5 × 60 
(f) 125 × 40 × 8 × 25