हिंदी

Find the Number A, If 8.4% Of A Is 42 - Mathematics

Advertisements
Advertisements

प्रश्न

Find the number a, if 8.4% of a is 42

योग

उत्तर

\[8 . 4 \% \text{ of a is }42 . \]
\[i . e . , \frac{8 . 4}{100} \times a = 42\]
\[ \Rightarrow a = \frac{42 \times 100}{8 . 4}\]
\[ \therefore a = 500\]

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 12: Percentage - Exercise 12.2 [पृष्ठ ९]

APPEARS IN

आरडी शर्मा Mathematics [English] Class 8
अध्याय 12 Percentage
Exercise 12.2 | Q 2.1 | पृष्ठ ९

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

The value of a machine depreciates every year by 5%. If the present value of the machine be Rs 100000, what will be its value after 2 years?


Find: 2.7 is what percent of 18?


Find the resulting quantity when 25 km is increased by 5%.


Find the resulting quantity when there is a 2.5% increase in the salary of ₹ 62,500.


By weight, 90% of tomato and 78% of potato is water. Find the weight of potato which contains 39 kg of water.


The original price of an article is ₹ 640. Find its new price when its price is decreased by 20%


Rewrite the underlined part using percentage language.

Aparna scored 7.5 points out of 10 in a competition


An average urban Indian uses about 150 litres of water every day.

Activity Litres per person per day
Drinking 3
Cooking 4
Bathing 20
Sanitation 40
Washing clothes 40
Washing utensils 20
Gardening 23
Total 150

What per cent of water is used for drinking, cooking and gardening together?


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.

Which can be measured more accurately : the total amount of fat in cream of tomato soup or the total amount of fat in sweet corn soup? Explain.


What percent of 1 hour is 30 minutes?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×