Number of matches played by cricket team = 20 Percentage of won matches = 25% Total matches won by them = 25% of 20 = 25/100 x 20 = 5 Hence, they won 5 matches. Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapterRead more
Number of matches played by cricket team = 20
Percentage of won matches = 25%
Total matches won by them = 25% of 20
= 25/100 x 20
= 5
Hence, they won 5 matches.
Let Meera’s salary be ₹ x. Now, 10% of salary = ₹ 400 ⇒ 10% of x = ₹ 400 ⇒ 10/100 X x = 400 ⇒ x = 400x100/10 ⇒ x = 4,000 Hence, Meera’s salary is ₹ 4,000. 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/
Let Meera’s salary be ₹ x.
Now, 10% of salary = ₹ 400
⇒ 10% of x = ₹ 400
⇒ 10/100 X x = 400
⇒ x = 400×100/10
⇒ x = 4,000
Hence, Meera’s salary is ₹ 4,000.
Total voters = 15,000 Percentage of voted candidates = 60% Percentage of not voted candidates = 100 – 60 = 40% Actual candidates, who did not vote = 40% of 15000 = 40/100 x 15000 = 6000 Hence, 6,000 candidates did not vote. Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: httpRead more
Total voters = 15,000
Percentage of voted candidates = 60%
Percentage of not voted candidates = 100 – 60 = 40%
Actual candidates, who did not vote = 40% of 15000
= 40/100 x 15000 = 6000
Hence, 6,000 candidates did not vote.
Given: Percentage of females = 30% Percentage of males = 40% Total percentage of females and males = 30 + 40 = 70% Percentage of children = Total percentage – Percentage of males and females = 100% – 70% = 30% Hence, 30% are children. Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers viRead more
Given: Percentage of females = 30%
Percentage of males = 40%
Total percentage of females and males = 30 + 40 = 70%
Percentage of children = Total percentage – Percentage of males and females
= 100% – 70%
= 30%
Hence, 30% are children.
Let the whole quantity be x in given questions: 5% of x = 600 ⇒ 5/100 X x = 600 ⇒ x = 600x100/5 = 12,000 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/
Let the whole quantity be x in given questions:
5% of x = 600
⇒ 5/100 X x = 600
⇒ x = 600×100/5 = 12,000
(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
A local cricket team played 20 matches in one season. It won 25% of them. How many matches did they win?
Number of matches played by cricket team = 20 Percentage of won matches = 25% Total matches won by them = 25% of 20 = 25/100 x 20 = 5 Hence, they won 5 matches. Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapterRead more
Number of matches played by cricket team = 20
Percentage of won matches = 25%
Total matches won by them = 25% of 20
= 25/100 x 20
= 5
Hence, they won 5 matches.
Class 7 Maths Chapter 8 Exercise 8.2
See lessMeeta saves ₹ 400 from her salary. If this is 10% of her salary. What is her salary?
Let Meera’s salary be ₹ x. Now, 10% of salary = ₹ 400 ⇒ 10% of x = ₹ 400 ⇒ 10/100 X x = 400 ⇒ x = 400x100/10 ⇒ x = 4,000 Hence, Meera’s salary is ₹ 4,000. 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/
Let Meera’s salary be ₹ x.
Now, 10% of salary = ₹ 400
⇒ 10% of x = ₹ 400
⇒ 10/100 X x = 400
⇒ x = 400×100/10
⇒ x = 4,000
Hence, Meera’s salary is ₹ 4,000.
Class 7 Maths Chapter 8 Exercise 8.2
See lessOut of 15,000 voters in a constituency, 60% voted. Find the percentage of voters who did not vote. Can you now find how many actually did not vote?
Total voters = 15,000 Percentage of voted candidates = 60% Percentage of not voted candidates = 100 – 60 = 40% Actual candidates, who did not vote = 40% of 15000 = 40/100 x 15000 = 6000 Hence, 6,000 candidates did not vote. Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers vist to: httpRead more
Total voters = 15,000
Percentage of voted candidates = 60%
Percentage of not voted candidates = 100 – 60 = 40%
Actual candidates, who did not vote = 40% of 15000
= 40/100 x 15000 = 6000
Hence, 6,000 candidates did not vote.
Class 7 Maths Chapter 8 Exercise 8.2
See lessIn a city, 30% are females, 40% are males and remaining are children. What percent are children?
Given: Percentage of females = 30% Percentage of males = 40% Total percentage of females and males = 30 + 40 = 70% Percentage of children = Total percentage – Percentage of males and females = 100% – 70% = 30% Hence, 30% are children. Class 7 Maths Chapter 8 Exercise 8.2 </ifr for more answers viRead more
Given: Percentage of females = 30%
Percentage of males = 40%
Total percentage of females and males = 30 + 40 = 70%
Percentage of children = Total percentage – Percentage of males and females
= 100% – 70%
= 30%
Hence, 30% are children.
Class 7 Maths Chapter 8 Exercise 8.2
See lessFind the whole quantity if: 5% of it is 600
Let the whole quantity be x in given questions: 5% of x = 600 ⇒ 5/100 X x = 600 ⇒ x = 600x100/5 = 12,000 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/
Let the whole quantity be x in given questions:
5% of x = 600
⇒ 5/100 X x = 600
⇒ x = 600×100/5 = 12,000
Class 7 Maths Chapter 8 Exercise 8.2
See lessFind: (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/