## Selina Concise Class 10 Math Chapter 14 Equation of a line Exercise 14E Solutions

Selina Concise Class 10 Math Chapter 14 Equation of a line Exercise 14E Solutions   Exercise 14E   (Q1) Find the value of K for which the lines kx – 5y + 4 = 0 and 5x -2y + 5 = 0 are perpendicular to each other. Solution: Given equation of – Lines are kx […]

## Selina Concise Class 10 Math Chapter 14 Equation of a line Exercise 14D Solutions

Selina Concise Class 10 Math Chapter 14 Equation of a line Exercise 14D Solutions   Exercise 14D   (Q1) Find the slope and y – intercept of the line: (i) y = 4 (ii) ax – by = 0 (iii) 3x – 4y = 5 Solution:  (i) Y = 4 General equation, y = mx […]

## Selina Concise Class 10 Math Chapter 14 Equation of a line Exercise 14C Solutions

Selina Concise Class 10 Math Chapter 14 Equation of a line Exercise 14C Solutions    Exercise- 14C   (1) Find the equation of line whose y – intercept = 2 and slope = 3 Solution: Given that, y – Intercept = 2 x = 0 Slope = 3 m = 3 ∴ We have to […]

## Selina Concise Class 10 Math Chapter 14 Equation of a line Exercise 14B Solutions

Selina Concise Class 10 Math Chapter 14 Equation of a line Exercise 14B Solutions   Exercise – 14B   (1) Find the slope of the line whose inclination is: (i) 0°  (ii) 30°  (iii) 72°  (iv) 46° Solution:-   (i) Θ = 0° Slope of x – axis parallel to x – axis ∴ m […]

## Selina Concise Class 10 Math Chapter 6 Solving (simple) problems (Based on Quadratic Equations) Exercise 6D Solutions

Selina Concise Class 10 Math Chapter 6 Solving (simple) problems (Based on Quadratic Equations) Exercise 6D Solutions   Solving (simple) problems (Based on Quadratic Equations) Exercise 6D   (Q1) The sum S of n successive odd numbers starting from 3 is given by the relation: S = n (n + 2). Determine n, if the […]

## Selina Concise Class 10 Math Chapter 6 Solving (simple) problems (Based on Quadratic Equations) Exercise 6C Solutions

Selina Concise Class 10 Math Chapter 6 Solving (simple) problems (Based on Quadratic Equations) Exercise 6C Solutions    Solving (simple) problems (Based on Quadratic Equations) Exercise 6C   (Q1) The speed of an ordinary train is x km per hr and that of an express train is (x + 25) km per hr. (i) Find […]

## Selina Concise Class 10 Math Chapter 25 Exercise 25C Probability Solutions

Selina Concise Class 10 Math Chapter 25 Exercise 25C Probability Solutions   Probability Exercise: 25C (Q1) A bag contains 3 red balls, 4 blue balls, and 1 yellow ball, all the balls being identical in shape and size. If a ball is taken out of the bag without looking into it; find the probability that […]

## Selina Concise Class 10 Math Chapter 25 Exercise 25B Probability Solutions

Selina Concise Class 10 Math Chapter 25 Exercise 25B Probability Solutions   Probability Exercise: 25B (Q1) Nine cards (identical in all respects) are numbered 2 to 10. A card is selected from them at random find the probability that the card selected will be: (i) An even number (ii) A multiple of 3 (iii) An […]

## Selina Concise Class 10 Math Chapter 25 Exercise 25A Probability Solutions

Selina Concise Class 10 Math Chapter 25 Exercise 25A Probability Solutions   Probability Exercise: 25A (Q1) A coin is tossed once find the probability of: (i) Getting a tail (ii) Not getting a tail Solution: If a coin is tossed once then the simple space is = {H, T} [H = Head and T – […]

## Selina Concise Class 10 Math Chapter 23 Graphical Representation (Histograms and ogives) Solutions

Selina Concise Class 10 Math Chapter 23 Graphical Representation (Histograms and ogives) Solutions   Graphical Representation (Histograms and ogives)   (Q1) Draw histograms for the following frequency distributions (i) Class interval 0 – 10 10 – 20 20 – 30 30 – 40 40 – 50 50 – 60 Frequency 12 20 26 18 10 […]