Samacheer Kalvi solutions for Mathematics - Term 3 [English] Class 7 TN Board chapter 2 - Percentage and Simple Interest [Latest edition]

In the following grid, find the numbers of coloured squares and express it as a fraction, decimal and percentage.

In the following grid, find the number of coloured squares and express it as a fraction, decimal and percentage.

In the following grid, find the number of coloured squares and express it as a fraction, decimal and percentage.

In the following grid, find the number of coloured squares and express it as a fraction, decimal and percentage.

In the following grid, find the number of coloured squares and express it as a fraction, decimal and percentage.

A picture of chess board is given. Find the percentage of the white coloured squares

A picture of chess board is given. Find the percentage of grey coloured squares

A picture of chess board is given. Find the percentage of the squares that have the pieces 

A picture of chess board is given. The squares that do not have the pieces

A picture of dart board is given. Find the percentage of white coloured portion and black coloured portion.

Write the following fraction as percentage.

`36/50`

Write the following fraction as percentage.

`81/30`

Write the following fraction as percentage.

`42/56`

Write the following fraction as percentage.

`2 1/4`

Write the following fraction as percentage.

`1 3/5`

Anbu scored 436 marks out of 500 in his exams. What was the percentage he scored?

Write the following percentage as fraction.

21%

Write the following percentage as fraction.

93.1%

Write the following percentage as fraction.

151%

Write the following percentage as fraction.

65%

Write the following percentage as fraction.

0.64%

Iniyan bought 5 dozen eggs. Out of that 5 dozen eggs, 10 eggs are rotten. Express the number of good eggs as percentage

In an election, Candidate X secured 48% of votes. What fraction will represent his votes?

Ranjith’s total income was ₹ 7,500. He saved 25% of his total income. Find the amount saved by him.

Thendral saved one fourth of her salary. Her savings percentage is

Kavin scored 15 out of 25 in a test. The percentage of his marks is

0.07% is

Write the following percentage as decimal.

21%

Write the following percentage as decimal.

93.1%

Write the following percentage as decimal.

151%

Write the following percentage as decimal.

65%

Write the following percentage as decimal.

0.64%

Convert the following decimal as percentage

0.282

Convert the following decimal as percentage

1.51

Convert the following decimal as percentage

1.09

Convert the following decimal as percentage

0.71

Convert the following decimal as percentage

0.858

In an examination a student scored 75% of marks. Represent the given percentage in decimal form?

In a village 70.5% people are literate. Express it as a decimal.

Scoring rate of a batsman is 86%. Write his strike rate as decimal

The height of a flag pole in a school is 6.75 m. Express it as percentage

The weights of two chemical substances are 20.34 g and 18.78 g. Write the difference in percentage

Find the percentage of shaded region in the following figure.

Decimal value of 142.5% is

The percentage of 0.005 is

The percentage of 4.7 is

14 out of the 70 magazines at the bookstore are comedy magazines. What percentage of the magazines at the bookstore are comedy magazines?

A tank can hold 50 litres of water. At present, it is only 30% full. How many litres of water will fill the tank, so that it is 50% full?

Karun bought a pair of shoes at a sale of 25%. If the amount he paid was ₹ 1000, then find the marked price

An agent of an insurance company gets a commission of 5% on the basic premium he collects. What will be the commission earned by him if he collects ₹ 4800?

A biology class examined some flowers in a local Grassland. Out of the 40 flowers they saw, 30 were perennials. What percentage of the flowers were perennials?

Ismail ordered a collection of beads. He received 50 beads in all. Out of that 15 beads were brown. Find the percentage of brown beads?

Ramu scored 20 out of 25 marks in English, 30 out of 40 marks in Science and 68 out of 80 marks in mathematics. In which subject his percentage of marks is best?

Peter requires 50% to pass. If he gets 280 marks and falls short by 20 marks, what would have been the maximum marks of the exam?

Kayal scored 225 marks out of 500 in revision test 1 and 265 out of 500 marks in revision test 2. Find the percentage of increase in her score

Roja earned ₹ 18,000 per month. She utilized her salary in the ratio 2 : 1 : 3 for education, savings and other expenses respectively. Express her usage of income in percentage

Find the simple interest on ₹ 35,000 at 9% per annum for 2 years?

Aravind borrowed a sum of ₹ 8,000 from Akash at 7% per annum. Find the interest and amount to be paid at the end of two years

Sheela has paid simple interest on a certain sum for 4 years at 9.5% per annum is ₹ 21,280. Find the sum

Basha borrowed ₹ 8,500 from a bank at a particular rate of simple interest. After 3 years, he paid ₹ 11,050 to settle his debt. At what rate of interest he borrowed the money?

In What time will ₹ 16,500 amount to ₹ 22,935 at 13% per annum?

In what time will ₹ 17800 amount to ₹ 19936 at 6% per annum?

A sum of ₹ 48,000 was lent out at simple interest and at the end of 2 years and 3 months the total amount was ₹ 55,560. Find the rate of interest per year

A principal becomes ₹ 17,000 at the rate of 12% in 3 years. Find the principal.

The interest for a principle of ₹ 4,500 which gives an amount of ₹ 5,000 at end of certain period is

Which among the following is the simple interest for the principle of ₹ 1,000 for one year at the rate of 10% interest per annum?

Which among the following rate of interest yields an interest of ₹ 200 for the principle of ₹ 2,000 for one year

When Mathi was buying her flat she had to put down a deposit of `1/10` of the value of the flat. What percentage was this?

Yazhini scored 15 out of 25 in a test. Express the marks scored by her in percentage

Out of total 120 teachers of a school 70 were male. Express the number of male teachers as percentage

A cricket team won 70 matches during a year and lost 28 matches and no results for two matches. Find the percentage of matches they won

There are 500 students in a rural school. If 370 of them can swim, what percentage of them can swim and what percentage cannot?

The ratio of Saral’s income to her savings is 4 : 1. What is the percentage of money saved by her?

A salesman is on a commission rate of 5%. How much commission does he make on sales worth ₹ 1,500?

In the year 2015 ticket to the world cup cricket match was ₹ 1,500. This year the price has been increased by 18%. What is the price of a ticket this year?

2 is what percentage of 50?

What percentage of 8 is 64?

Stephen invested ₹ 10,000 in a savings bank account that earned 2% simple interest. Find the interest earned if the amount was kept in the bank for 4 years

Riya bought ₹ 15,000 from a bank to buy a car at 10% simple interest. If she paid ₹ 9,000 as interest while clearing the loan, find the time for which the loan was given

In how much time will the simple interest on ₹ 3,000 at the rate of 8% per annum be the same as simple interest on ₹ 4,000 at 12% per annum for 4 years?

A man travelled 80 km by car and 320 km by train to reach his destination. Find what percent of total journey did he travel by car and what percent by train?

Lalitha took a math test and got 35 correct and 10 incorrect answers. What was the percentage of correct answers?

Kumaran worked 7 months out of the year. What percentage of the year did he work?

The population of a village is 8000. Out of these, 80% are literate and of these literate people, 40% are women. Find the ratio the number of literate women to the total population?

A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

A metal bar weighs 8.5 kg. 85% of the bar is silver. How many kilograms of silver are in the bar?

Concession card holders pay ₹ 120 for a train ticket. Full fare is ₹ 230. What is the percentage of discount for concession card holders?

A tank can hold 200 litres of water. At present, it is only 40% full. How many litres of water to fill in the tank, so that it is 75% full?

Which is greater `16 2/3` or `2/5` or 0.17?

The value of a machine depreciates at 10% per year. If the present value is ₹ 1,62,000, what is the worth of the machine after two years?

In simple interest, a sum of money amounts to ₹ 6,200 in 2 years and ₹ 6,800 in 3 years. Find the principal and rate of interest.

A sum of ₹ 46,900 was lent out at simple interest and at the end of 2 years, the total amount was ₹ 53,466. Find the rate of interest per year

Arun lent ₹ 5,000 to Balaji for 2 years and ₹ 3,000 to Charles for 4 years on simple interest at the same rate of interest and received ₹ 2,200 in all from both of them as interest. Find the rate of interest per year

If a principal is getting doubled after 4 years, then calculate the rate of interest. (Hint: Let P = ₹ 100)