(a) 15% of 250 = 15/100 x 250 = 15 x 2.5 = 37.5 (b) 1% of 1 hours = 1% of 60 minutes = 1% of (60 x 60) seconds = 1/100 x 60 x 60 = 6 x 6 = 36 seconds (c) 20% of ₹2500 = 20/100 x 2500 = 20 x 25 = ₹ 500 (d) 75% of 1 kg = 75% of 1000 g = 75/100 x 1000 = 750g = 0.750 kg Class 7 Maths Chapter 8 ExerciseRead more
(a) 15% of 250 = 15/100 x 250 = 15 x 2.5 = 37.5
(b) 1% of 1 hours = 1% of 60 minutes = 1% of (60 x 60) seconds
= 1/100 x 60 x 60 = 6 x 6 = 36 seconds
(c) 20% of ₹2500 = 20/100 x 2500 = 20 x 25 = ₹ 500
(d) 75% of 1 kg = 75% of 1000 g = 75/100 x 1000 = 750g = 0.750 kg
(i) Coloured part = 1/4 ∴ Percent of coloured part = 1/4 x 100% = 25% (ii) Coloured part = 3/5 ∴ Percent of coloured part = 3/5 x 100% = 60% (iii) Coloured part = 3/8 ∴ Percent of coloured part = 3/8 x 100% = 3/2x25% = 37.5% Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: httRead more
(i) Coloured part = 1/4
∴ Percent of coloured part = 1/4 x 100% = 25%
(ii) Coloured part = 3/5
∴ Percent of coloured part = 3/5 x 100% = 60%
(iii) Coloured part = 3/8
∴ Percent of coloured part = 3/8 x 100% = 3/2×25% = 37.5%
0.65 = 65/100 x 100% = 65% Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-8/
1/8 = 1/8 x100% = 25/2% = 12.5% Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-8/
(i) People present per km² = Population/Area In Rajasthan = 570 lakhs/3 lakhs per km² = 190 people km² In U.P. = 1660 lakhs/2 lakh per km² = 830 people per km² (ii) Rajasthan is less populated. Class 7 Maths Chapter 8 Exercise 8.1 for more answers vist to: https://www.tiwariacademy.com/ncert-solutioRead more
(i) People present per km² = Population/Area
In Rajasthan = 570 lakhs/3 lakhs per km² = 190 people km²
In U.P. = 1660 lakhs/2 lakh per km² = 830 people per km²
Find: (a) 15% of 250 (b) 1% of 1 hour (c) 20% of ₹2500 (d) 75% of 1 kg
(a) 15% of 250 = 15/100 x 250 = 15 x 2.5 = 37.5 (b) 1% of 1 hours = 1% of 60 minutes = 1% of (60 x 60) seconds = 1/100 x 60 x 60 = 6 x 6 = 36 seconds (c) 20% of ₹2500 = 20/100 x 2500 = 20 x 25 = ₹ 500 (d) 75% of 1 kg = 75% of 1000 g = 75/100 x 1000 = 750g = 0.750 kg Class 7 Maths Chapter 8 ExerciseRead more
(a) 15% of 250 = 15/100 x 250 = 15 x 2.5 = 37.5
(b) 1% of 1 hours = 1% of 60 minutes = 1% of (60 x 60) seconds
= 1/100 x 60 x 60 = 6 x 6 = 36 seconds
(c) 20% of ₹2500 = 20/100 x 2500 = 20 x 25 = ₹ 500
(d) 75% of 1 kg = 75% of 1000 g = 75/100 x 1000 = 750g = 0.750 kg
Class 7 Maths Chapter 8 Exercise 8.2
See lessEstimate what part of the figures is coloured and hence find the percent which is coloured.
(i) Coloured part = 1/4 ∴ Percent of coloured part = 1/4 x 100% = 25% (ii) Coloured part = 3/5 ∴ Percent of coloured part = 3/5 x 100% = 60% (iii) Coloured part = 3/8 ∴ Percent of coloured part = 3/8 x 100% = 3/2x25% = 37.5% Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: httRead more
(i) Coloured part = 1/4
∴ Percent of coloured part = 1/4 x 100% = 25%
(ii) Coloured part = 3/5
∴ Percent of coloured part = 3/5 x 100% = 60%
(iii) Coloured part = 3/8
∴ Percent of coloured part = 3/8 x 100% = 3/2×25% = 37.5%
Class 7 Maths Chapter 8 Exercise 8.2
See lessConvert the given decimal fractions to per cents: 0.65
0.65 = 65/100 x 100% = 65% Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-8/
0.65 = 65/100 x 100% = 65%
Class 7 Maths Chapter 8 Exercise 8.2
See lessConvert the given fractional numbers to percent: 1/8
1/8 = 1/8 x100% = 25/2% = 12.5% Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-8/
1/8 = 1/8 x100% = 25/2% = 12.5%
Class 7 Maths Chapter 8 Exercise 8.2
See lessPopulation of Rajasthan = 570 lakhs and population of U.P. = 1660 lakhs. Area of Rajasthan = 3 lakh km² and area of U.P. = 2 lakh km². (i) How many people are there per km2 in both states? (ii) Which state is less populated?
(i) People present per km² = Population/Area In Rajasthan = 570 lakhs/3 lakhs per km² = 190 people km² In U.P. = 1660 lakhs/2 lakh per km² = 830 people per km² (ii) Rajasthan is less populated. Class 7 Maths Chapter 8 Exercise 8.1 for more answers vist to: https://www.tiwariacademy.com/ncert-solutioRead more
(i) People present per km² = Population/Area
In Rajasthan = 570 lakhs/3 lakhs per km² = 190 people km²
In U.P. = 1660 lakhs/2 lakh per km² = 830 people per km²
(ii) Rajasthan is less populated.
Class 7 Maths Chapter 8 Exercise 8.1
for more answers vist to:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-8/