# NCERT Solutions for class 10 maths chapter 1 exercise 1.4

NCERT Solutions for class 10 maths chapter 1 exercise 1.4 in English Medium and Hindi Medium PDF format as well as online to study. Click here to download solutions of class 10 all subjects. Exercise 1.1, Exercise 1.2 and Exercise 1.3 solutions.

## NCERT Solutions for class 10 maths chapter 1 exercise 1.4

If you need solutions in Hindi, Click for Hindi Medium solutions of 10 Maths Exercise 1.4

Exercise 1.1

Exercise 1.2

Exercise 1.3

#### Class 10 Maths Exercise 1.4 Solutions in Hindi Medium

Exercise 1.1

Exercise 1.2

Exercise 1.3

To get the solutions in English, Click for English Medium solutions.

##### Important Questions based on Real Numbers Exercise 1.4
1. Is 5.131131113… a rational number or irrational number? (Answer: Irrational)
2. What can you say about the product of a non-zero rational and irrational number? (Answer: Irrational)
3. After how many places the decimal expansion of 13497/1250 will terminate? (Answer: 4)
4. Find the least number which is divisible by all numbers from 1 to 10 (both inclusive).
5. Without actual performing the long division, find if 395/10500 will have terminating or non-terminating (repeating) decimal expansion. (Answer: Non-terminating repeating)
6. A rational number in its decimal expansion is 327.7081. What can you say about the prime factors of q, when this number is expressed in the form of p/q? Give reasons. (Answer: Denominator is the multiple of 2’s and 5’s)
7. Find one rational and one irrational number between √3 and √5. (Answer: Rational number = 1.8, irrational number = 1.808008000…)

#### Mind Twister

Five Pirates and a monkey are shipwrecked on an island. The pirates have collected a number of coconuts which they plan to divide the next morning. Not trusting others, one pirate wakes up during the night and divides the coconuts into five equal parts and one is left which he gives to the monkey. He hides his portion. During the night each of the five pirates does the same thing equally dividing coconuts in five equal parts, giving one left one to the monkey and hiding his share. In the morning they all wake up and divide them equally and one is left over and given to the monkey. What is the smallest number of coconuts they could have collected for their original pile?

Answer of this riddle is given at the end page of Exercise 1.2