Advertisements
Advertisements
प्रश्न
If the cost of 6 cans of juice in ₹ 210, then what will be the cost of 4 cans of juice?
Advertisements
उत्तर
Let the cost required be x
| Number of cans of juice | 6 | 4 |
| Cost in rupees | 210 | x |
As number of cans increases cost also increases.
∴ They are in direct proportion
∴ `(x_1)/(y_1) = (x_2)/(y_2)`
`6/210 = 4/x`
6 × x = 4 × 210
x = `(4 xx 210)/6`
x = 140
Cost of 4 cans of juice = 140
APPEARS IN
संबंधित प्रश्न
In Question 2 above, if 1 part of a red pigment requires 75 mL of base, how much red pigment should we mix with 1800 mL of base?
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?
Fill in the blank in of the following so as to make the statement true:
Two quantities are said to vary......... with each other if they increase (decrease) together in such a way that the ratio of the corresponding values remains same.
Mohan takes 9 hours to mow a large lawn. He and Sohan together can mow it in 4 hours. How long will Sohan take to mow the lawn if he works alone?
If 12 boys earn Rs 840 in 7 days, what will 15 boys earn in 6 days?
Working 8 hours a day, Ashu can copy a book in 18 days. How many hours a day should he work so as to finish the work in 12 days?
If half a meter of cloth costs ₹ 15. Find the cost of `8 1/3` meters of the same cloth
Both u and v vary directly with each other. When u is 10, v is 15, which of the following is not a possible pair of corresponding values of u and v?
If x = 5y, then x and y vary ______ with each other.
From the following table, determine if x and y are in direct proportion or not.
| x | 4 | 7 | 10 | 16 |
| y | 24 | 42 | 60 | 96 |
