Chapter 12 – Exponents and Powers
126. The cells of a bacteria double itself every hour. How many cells will there be after 8 hours, if initially we start with 1 cell. Express the answer in powers.
01
Aug
126. The cells of a bacteria double itself every hour. How many cells will there be after 8 hours, if initially we start with 1 cell. Express the answer in powers. 126. The cells of a bacteria double itself every hour. How many cells will there be after 8 hours if initially we start with [...]
125. Planet A is at a distance of 9.35 × 10^6 km from Earth and planet B is 6.27 × 10^7 km from Earth. Which planet is nearer to Earth?
01
Aug
125. Planet A is at a distance of 9.35 × 10^6 km from Earth and planet B is 6.27 × 10^7 km from Earth. Which planet is nearer to Earth? 125. Planet A is at a distance of 9.35 × 10^6 km from Earth and planet B is 6.27 × 10^7 km from Earth. Which [...]
124. The cells of a bacteria double in every 30 minutes. A scientist begins with a single cell. How many cells will be there after
01
Aug
124. The cells of a bacteria double in every 30 minutes. A scientist begins with a single cell. How many cells will be there after 124. The cells of a bacteria double in every 30 minutes. A scientist begins with a single cell. How many cells will be there after August 1, 2021 Category: Chapter [...]
123. A new born bear weighs 4 kg. How many kilograms might a five year old bear weigh if its weight increases by the power of 2 in 5 years?
01
Aug
123. A new born bear weighs 4 kg. How many kilograms might a five year old bear weigh if its weight increases by the power of 2 in 5 years? 123. A new born bear weighs 4 kg. How many kilograms might a five year old bear weigh if its weight increases by the power [...]
122. If 5^m x 5^3 x 5^-2 / 5^-5 = 5^12 find m
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Aug
122. If 5^m x 5^3 x 5^-2 / 5^-5 = 5^12 find m 122. If 5^m x 5^3 x 5^-2 / 5^-5 = 5^12 find m August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
121. 16 x 10^2 x 64 / 2^4 x 4^2
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Aug
121. 16 x 10^2 x 64 / 2^4 x 4^2 121. 16 x 10^2 x 64 / 2^4 x 4^2 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
120. 125 x x^-3 / 5^-3 x 25 x x^-6
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Aug
120. 125 x x^-3 / 5^-3 x 25 x x^-6 120. 125 x x^-3 / 5^-3 x 25 x x^-6 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
119. 2^n x 2^6/2^-3 =18^2
01
Aug
119. 2^n x 2^6/2^-3 =18^2 119. 2^n x 2^6/2^-3 =18^2 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
118. 6^n/6^-2 = 6^3
01
Aug
118. 6^n/6^-2 = 6^3 118. 6^n/6^-2 = 6^3 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
117. By what number should (-3/2)^-3 be divided so that the quotient may be (4/27)^-2 ?
01
Aug
117. By what number should (-3/2)^-3 be divided so that the quotient may be (4/27)^-2 ? 117. By what number should (-3/2)^-3 be divided so that the quotient may be (4/27)^-2 ? August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,