English

Mohan'S Income is Rs 15500 per Month. He Saves 11% of His Income. If His Income Increases by 10%, Then He Reduces His Saving by 1%, How Much Does He Save Now? - Mathematics

Advertisements
Advertisements

Question

Mohan's income is Rs 15500 per month. He saves 11% of his income. If his income increases by 10%, then he reduces his saving by 1%, how much does he save now?

Numerical
Advertisements

Solution

Mohan's saving = 11 % of 15500
\[ = \frac{11}{100} \times 15500\]
 = Rs . 1705
It is given that Mohan's income increases by 10 %. 
\[ \therefore\text{ Increase in income }= \frac{10}{100} \times 15500 = Rs 1550\]
Increased income = Rs (15500 + 1550) = Rs 17050
Now, percentage of saving = (11 - 1) = 10 % 
\[ \therefore\text{ Saving }= \frac{10}{100} \times 17050 = Rs 1705\]
Thus, the amounts of his present and earlier savings are the same.

shaalaa.com
  Is there an error in this question or solution?
Chapter 12: Percentage - Exercise 12.2 [Page 10]

APPEARS IN

RD Sharma Mathematics [English] Class 8
Chapter 12 Percentage
Exercise 12.2 | Q 24 | Page 10

RELATED QUESTIONS

On Sunday 845 people went to the Zoo. On Monday only 169 people went. What is the per cent decrease in the people visiting the zoo on Monday?


The population of a city decreased from 25,000 to 24,500. Find the percentage decrease.


Shikha's income is 60% more than that of Shalu. What percent is Shalu's income less than Shikha's?

 

Increase of a number from 150 to 162 is equal to increase of ______ per cent.


Four times a number is a ______ % increase in the number.


Number of students appearing for class X CBSE examination increases from 91,422 in 1999 – 2000 to 11,6054 in 2008 – 09. Increase in the number of students appeared is approximately 27%.


In 1975, the consumption of water for human use was about 3850 cu.km/year. It increased to about 6000 cu.km/year in the year 2000. Find the per cent increase in the consumption of water from 1975 to 2000. Also, find the annual per cent increase in consumption (assuming water consumption increases uniformly).


What is the percentage increase or decrease in the number of seats won by A, B, C and D in the general elections of 2009 as compared to the results of 2004?

Political party Number of seats won
in 2004
Number of seats won
in 2009
A 206 145
B 116 138
C 4 24
D 11 12

The food labels given below give information about 2 types of soup: cream of tomato and sweet corn. Use these labels to answer the given questions. (All the servings are based on a 2000 calorie diet.)

Sweet Corn Cream of Tomato
Nutrition Facts Nutrition Facts
Serving Size 1 cup (240ml) Serving Size 1 cup (240ml)
About 2 serving per Container About 2 serving per Container
Amount Per Serving   Amount Per Serving  
Calories 90 Calories from Fat 9 Calories 100 Calories from Fat 20
  % Daily Value*   % Daily Value*
Total Fat 2g 2% Total Fat 2g 3%
Saturated Fat-0g 0% Saturated Fat-1.5g 6%
Cholesterol 0mg 0% Cholesterol 10mg 3%
Sodium 540mg 22% Sodium 690mg 29%
Total Carbohydrate 17g 6% Total Carbohydrate 17g 6%
Dietary Fibre 3 gram 14% Dietary Fibre 4 gram 18%
Sugar 5g   Sugar 11g  
Protein 3g   Protein 2g  
Vitamin A 30% Vitamin C 10% Vitamin A 20% Vitamin C 20%
Calcium 2% Iron 6% Calcium 0% Iron 8%
*Per cent Daily Values are
based on a 2,000 calorie diet.
*Per cent Daily Values are
based on a 2,000 calorie diet.

Find the increase per cent of sugar consumed if cream of tomato soup is chosen over sweet corn soup.


Sunscreens block harmful ultraviolet (UV) rays produced by the sun. Each sunscreen has a Sun Protection Factor (SPF) that tells you how many minutes you can stay in the sun before you receive one minute of burning UV rays. For example, if you apply sunscreen with SPF 15, you get 1 minute of UV rays for every 15 minutes you stay in the sun.

Suppose a sunscreen allows 25% of the sun’s UV rays.

  1. What fraction of UV rays does this sunscreen block? Give your answer in lowest terms.
  2. Use your answer from Part (a) to calculate this sunscreen’s SPF. Explain how you found your answer.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×