In a school average age of hs students is 14 yrs and average age of up students is 7 yrs . Average age of the all students is 11 then find a)Ratio of the number of students b)Difference between the hs and up students are what % of the total number of students?

Challenger App

Home/

Questions/

Maths/

Ratio & Proportion

No.1 PSC Learning App

★

1M+ Downloads

Get App

In a school average age of hs students is 14 yrs and average age of up students is 7 yrs . Average age of the all students is 11 then find a)Ratio of the number of students b)Difference between the hs and up students are what % of the total number of students?

A4 : 3, 14.28%

B4:3, 25%

C5:7, 25%

D5:7, 14.28%

Answer:

A. 4 : 3, 14.28%

Read Explanation:

Read more in App

Related Questions:

ടാങ്കിന്റെ 1/4 ഭാഗത്തിൽ 135 ലിറ്റർ വെള്ളം ഉൾക്കൊള്ളാൻ കഴിയും. 180 ലിറ്റർ വെള്ളം ഉണ്ടെങ്കിൽ ടാങ്കിന്റെ എത്ര ഭാഗമാണ് നിറഞ്ഞിരിക്കുന്നത്?

The ratio of income of two person is 5 : 3 and that of their expenditure is 9 : 5. If they save amount Rs. 1300 and Rs. 900 monthly respectively. Find the difference between their yearly Income.

After spending 1/4th of pocket money on chocolates and 1/8th of pizza, a girl is left with Rs. 40. How much money did she have at first?

An amount of ₹682 is divided among three persons in the ratio of 18 : 3 : 9. The difference between the largest and the smallest shares (in ₹) in the distribution is:

Rahul has a bag which contains Rs. 1, 50 paisa, and 25 paisa coins and the ratio of number of coins is 1 ∶ 1/2 ∶ 1/3. If Rahul has a total amount of Rs 1120, then find the total value of 25 paisa coins.