Are you looking for DAV Maths Solutions for class 8 then you are in right place, we have discussed the solution of the Secondary Mathematics book which is followed in all DAV School. Solutions are given below with proper Explanation please bookmark our website for further updates!! All the Best !!
Unit 2 Brain Teaser | DAV Solution Class 8 Secondary Mathematics
Q1A. Tick the correct option.
(i) Cube of 0.1 is equal to
(a) 1.11 (b) 0.001 (c) 0.101 (d) 0.01
(ii) The smallest number by which 1944 should be multiplied so that jt becomes a perfect cube is
(a) 3 (b) 2 (c) 5 (d) 4
(iii) Value of….
(a) 10 (b) 1000 (c) 100 (d) none of these
(a) 1 (b) 0.1 (c) 0.11 (d) 0.09
(v) Cube of….
Q1B. Answer the following questions.
(i) Find the number whose cube is 1728.
(ii) Find the value of…
(iii) Find the cube root of 0.000001.
(iv) What is the smallest number by which 1715 should be divided so that the quotient is a perfect cube?
Q2. Prove that if a number is tripled, then its cube is 27 times the cube of the given number.
Q3. Write cubes of all natural numbers from 1 to 10 and observe the pattern.
Q4. Find the cubes of:
Q5. Find the value of the following cube roots:
Q6. Find the smallest number which when multiplied with 3600 will make the product a perfect cube. Further, find the cube root of the product.
Q8. Guess the cube root of the following numbers.
(i) 6859 (ii) 12167 (iii) 32768.