ML Aggarwal CBSE Solutions Class 8 Math 2nd Chapter Exponents and Powers Exercise 2.2 (1) (i) 0.0000000000085 = 85×10/1000000000000 = 8.5×10-13 (ii) 0.000000000000942 = 9.42×102/1000000000000000 = 9.42×10-13 (iii) 6020000000000000 = 6.02×102×1013 = 6.02×1015 (iv) 0.00000000837 = 8.37×102/100000000000 = 8.37×10-9 (2) (i) 3.02×10-6 = 302/1000000×102 = 302/108= 0.00000302 (ii) 1.0007×1011 = 1007/10-11×103 = 1007/10-8 = 100700000000 […]

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## ML Aggarwal CBSE Solutions Class 8 Math Second Chapter Exponents and Powers Exercise 2.1

ML Aggarwal CBSE Solutions Class 8 Math 2nd Chapter Exponents and Powers Exercise 2.1 (1) (i) (3/5)-2 = 1/(3/5)2 = (5/3)2 = 5×5/3×3 = 25/9 (ii) (-3)-3 = 1/(-3)3 = (1/-3)3 = 1x1x1/-3x-3x-3 = 1/-27 (2) (i) [(2)-1+ (4)-1+ (3)-1]-1 = [1/2 + 1/4 + 1/3]-1 = [6+3+4/12]-1 = [13/12]-1 = 1/(13/12)1 = 12/13 Ans. […]

## ML Aggarwal CBSE Solutions Class 8 Math Fourth Chapter Cubes and Cube Roots Exercise 4.2

ML Aggarwal CBSE Solutions Class 8 Math 4th Chapter Cubes and Cube Roots Exercise 4.2 (7) Vol of cubic box = 21952 m ∴ let one side of b ox = l m We know that, l x l x l = 21952 Or, l3 = 21952 Or, l = √21952 = √28x28x28 = l […]

## ML Aggarwal CBSE Solutions Class 8 Math Fourth Chapter Cubes and Cube Roots Exercise 4.1

ML Aggarwal CBSE Solutions Class 8 Math 4th Chapter Cubes and Cube Roots Exercise 4.1 (5) (i) Volume of cuboid = 3 x 3 x 5 = 45 cm3 Therefore It is not a perfect cube. We need grouping triplet to form a cube The perfect cuboid should be = (3 x 3 x5) x […]

## ML Aggarwal CBSE Solutions Class 8 Math Third Chapter Squares and Square Roots Exercise 3.4

ML Aggarwal CBSE Solutions Class 8 Math 3rd Chapter Squares and Square Roots Exercise 3.4 the next perfect sq number is (90)2 = 8100 ∴ required number = 8100 – 8000 = 1000 ∴ 100, the least number that must be added to get perfect sq. (11) Total plants = 1400 We get remainder = […]

## ML Aggarwal CBSE Solutions Class 8 Math Third Chapter Squares and Square Roots Exercise 3.3

ML Aggarwal CBSE Solutions Class 8 Math 3rd Chapter Squares and Square Roots Exercise 3.3 ∴ 6 should be multiplied to get a perfect square ∴ 294 x 6 = 1764 = 6 x 6 x 7 x 7 ∴ 1764 is perfect square root. √1764 = √6x6x7x7 = 6 x 7 = 42 ∴ […]

## ML Aggarwal CBSE Solutions Class 8 Math Third Chapter Squares and Square Roots Exercise 3.2

ML Aggarwal CBSE Solutions Class 8 Math 3rd Chapter Squares and Square Roots Exercise 3.2 (1) 237, 353, 247, 478, 378 (2) (i) 1 (ii) 2 (iii) 9 (iv) 3 (v) 4 (vi) 5 (vii) 7 (viii) 8 (ix) 0 (x) 6 (3) (i) 4567 – unit digit of this num is 7 ∴ It […]

## ML Aggarwal CBSE Solutions Class 8 Math Third Chapter Squares and Square Roots Exercise 3.1

ML Aggarwal CBSE Solutions Class 8 Math 3rd Chapter Squares and Square Roots Exercise 3.1 (v) 243 => It is not a perfect square More Important: Class 8 Social Science Important Dates and Years Lakhmir Singh Manjit Kaur Class 8 Science Solution Class 8 Extra Questions (History) Class 8 English MCQ Questions and Answers Social […]

## ML Aggarwal CBSE Solutions Class 8 Math First Chapter Rational Numbers Exercise 1.6

ML Aggarwal CBSE Solutions Class 8 Math 1st Chapter Rational Numbers Exercise 1.6 (2) Population of city = 6,63,432 No of adult males = 6,63,432/2 = 3,31716 No of adult females = 6,63,432/3 = 2,21,144 ∴ No of children = 6,63,432 – (3,31,716 + 2,21,144) = 6,62,432 – 5,52,860 = 1,10,572 (3) Total student appeared […]

## ML Aggarwal CBSE Solutions Class 8 Math First Chapter Rational Numbers Exercise 1.5

ML Aggarwal CBSE Solutions Class 8 Math 1st Chapter Rational Numbers Exercise 1.5 (2) (i) A = 3/5 B = 7/7 C = 8/7 D = 12/7 (ii) P = -3/8 Q = -1/2 R = -7/8 S = -11/8 T = -3/2 (3) (i) -1/2 > 4/-5 (ii) -11/-17 > -9/13 (iii) -5/11 > […]