![lauriepdx](/avatars/19298.jpg)
lauriepdx
14.12.2021 •
Mathematics
ए और बी एक काम को क्रमशः 20 एवं 30 दिनों में अलग - अलग पूरा करते हैं। यदि दोनों एक साथ मिलकर काम करते हैं तो दोनों द्वारा दिनों में कितना हिस्सा करेंगे । कितना दिनों ma
Solved
Show answers
More tips
- L Leisure and Entertainment Carving: History and Techniques for Creating Vegetable and Fruit Decorations...
- P Photography and Videography How to Choose the Perfect Photo Paper for Your Images?...
- H Health and Medicine What vaccines do children need?...
- H Health and Medicine Reasons for the Appearance of Warts: Everything You Need to Know...
- A Art and Culture How to Learn Screaming: Step-by-Step Guide for Beginners...
- H Health and Medicine Contraceptive Pills After 35: The Importance Of Choosing The Right Medication...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
Answers on questions: Mathematics
- M Mathematics Bryson and his cousins plan to all chip in to get their grandmother a $250 christmas present. they can afford to put it on layaway with a 5% down payment and pay $30 a month...
- M Mathematics Choose all expressions that are equal to 3.89 Hint: There’s three 16.09 - 12.2 48.5 - 9.6 4.01 - 0.12 128 - 124.11 6 - 3.89...
- M Mathematics What is the area of the shaded region? 6 mm 21 mm2 24 mm 42 mm 48 mm2 4 mm 3 mm 2 mm 5 mm...
- H Health Why do you think athletes often eat lots of carbohydrates the day before a competition?...
- C Computers and Technology Bob approaches a beverage vending machine at a fast food kiosk. He has the option of choosing between hot and cold beverages. What control structure would Bob be using if...
- A Arts Which of the following is not likely an intention of da vinci’s, when he created his work of art, entitled old man contemplating the flow of water? a. the building seen behind...
Ответ:
Explanation :
A द्वारा पहले दिन का कार्य = 1 / 20 -
A द्वारा दूसरे दिन का कार्य = 1 / 20
A + B + C द्वारा तीसरे दिन का कार्य = 1/20+ 1/30
+ 1/60
⇒ (3 + 2 + 1)/60 = 1/10
3 दिनों में पूरा किया गया कार्य
⇒1/20 +1/20 + 1/10 = 1/5
कार्य पूरा करने में लिया गया समय
→ 3 × 5 = (1/5) ×5
→ 15 दिन = 1
-- 15 दिनों में कार्य पूरा हो जाएगा।
Ответ: