DSSSB PRT

2022

Afternoon

Arithmetic Ability 20

All Questions 20 Average 1 Data Interpretation 3 Mensuration 2 Mixtures 1 Number System 4 Percentage 2 Profit & Loss 1 Ratio & Proportion 1 Simple Interest 1 Simplification 1 Time and Work 1 Time, Speed & Distance 2

General Awareness 20

All Questions 20 Art & Culture 2 Books & Authors 1 Current Affairs 1 Economics 2 Geography 3 Governance 1 History 3 Polity 2 Science 3 Sports 2

General English 20

All Questions 20 Antonyms 1 Comprehension 5 Fill in the Blanks 2 Idioms & Phrases 2 One Word Substitution 1 Sentence Improvement 2 Sentence Rearrangement 2 Spelling 2 Spotting Errors 2 Synonyms 1

General Hindi 20

All Questions 20 Adjective 1 Antonyms 1 Case (Karak) 1 Comprehension 5 Grammar (Aspect) 1 Idioms 2 Pronoun 1 Punctuation 2 Sentence Type 2 Spelling 1 Synonyms 1 Tatsam-Tadbhav 1 Word Pair Meaning 1

Mental Ability 20

All Questions 20 Analogy 1 Analogy / Classification 2 Blood Relations 1 Coding-Decoding 1 Direction Sense 2 Mirror Image 2 Missing Character 1 Pattern Completion 1 Ranking 1 Seating Arrangement 1 Series 3 Syllogism 2 Venn Diagram 2

Teaching Methodology 100

All Questions 100 Art & Culture 2 Art Education 1 Assessment 1 Child Development 3 Child Health 1 Child Psychology 1 Child Rights 1 Classroom Management 2 Cognitive Development 1 Cognitive Psychology 1 Constructivism 1 Dance 1 Education Policies 1 Education Psychology 1 Education Society 1 Education System 1 Educational Technology 4 Emotional Intelligence 1 English Pedagogy 1 Evaluation 2 EVS Pedagogy 6 Gender Psychology 1 Gender Studies 1 Geography 1 Government Schemes 1 History 3 Inclusive Education 2 Language 1 Language Acquisition 1 Language Pedagogy 4 Learning Disabilities 1 Lesson Planning 1 Mathematics 2 Mathematics Pedagogy 4 Memory 1 Motivation 1 Neuroscience/Language 1 Nutrition 1 Pedagogy 5 Philosophy 3 Physical Development 2 Physical Education 3 Piaget's Theory 1 Psychology 3 RTE Act 2 School Community 3 School Management 2 Self Concept 1 Social Development 2 Social Learning 1 Social Science Pedagogy 3 Special Education 3 Statistics 1 Work Education 2 Yoga 1 Yoga Education 1

Arithmetic Ability

Average

EN हिंदी

✕

DSSSB PRT 2022 Afternoon 📅 16 Mar, 2022

What is the average of the first 9 multiples of 9?

A

40

B

46

C

45

D

35

Result Summary

APEDIA

DSSSB PRT

2022 • 16 Mar, 2022 • Afternoon

What is the average of the first 9 multiples of 9?

Correct Answer

45

• **Series:** 9, 18, 27 ... (9 × 9). • **Formula:** Avg of A.P. = (First + Last) / 2. • **Values:** First = 9, Last = 81. • **Calculation:** (9 + 81......

💡 Analysis & Explanation

• **Series ▼

** 9, 18, 27 ... (9 × 9).

• **Formula ▼

** Avg of A.P. = (First + Last) / 2.

• **Values ▼

** First = 9, Last = 81.

• **Calculation ▼

** (9 + 81) / 2 = 90 / 2 = 45.