Advertisements
Advertisements
Question
In direct proportion, `a_1/b_1` ______ `a_2/b_2`
Advertisements
Solution
In direct proportion, `a_1/b_1` `underlinebb(a_1/a_2)` `a_2/b_2`
Explanation:
In direct proportion,
`a_1/b_1 = a_2/b_2`
Where, `a_1/a_2 = k` ...(Constant)
APPEARS IN
RELATED QUESTIONS
A photograph of a bacteria enlarged 50,000 times attains a length of 5 cm as shown in the diagram. What is the actual length of the bacteria? If the photograph is enlarged 20,000 times only, what would be its enlarged length?
A and B can polish the floors of a building in 10 days. A alone can do \[\frac{1}{4}\] th of it in 12 days. In how many days can B alone polish the floor ?
If 7 kg onions cost 140 rupees, how much must we pay for 12 kg onions?
Expenditure of a family to number of members of the family are in direct proportion
A birthday party is arranged in third floor of a hotel. 120 people take 8 trips in a lift to go to the party hall. If 12 trips were made how many people would have attended the party?
A car is travelling 48 km in one hour. The distance travelled by the car in 12 minutes is ______.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Income tax and the income.
Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10 km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school start?
Pattern B consists of four tiles like pattern A. Write a proportion involving red dots and blue dots in pattern A and B. Are they in direct proportion? If yes, write the constant of proportion.
Many schools have a recommended students-teacher ratio as 35:1. Next year, school expects an increase in enrolment by 280 students. How many new teachers will they have to appoint to maintain the students-teacher ratio?
