Advertisements
Advertisements
Question
A DNA model was built using the scale 2 cm : 0.0000001 mm. If the model of the DNA chain is 17 cm long, what is the length of the actual chain?
Advertisements
Solution
Let the length of the actual chain be x mm.
Therefore, `(2 cm)/(0.0000001 mm) = (17 cm)/(x mm)`
⇒ `x = (17 xx 0.0000001)/2`
= 8.5 × 0.0000001
= 0.00000085 mm
APPEARS IN
RELATED QUESTIONS
Find the ratio of Rs 5 to 50 paise
Find the ratio of 15 kg to 210 g
Population of Rajasthan = 570 lakhs and population of UP = 1660 lakhs.
Area of Rajasthan = 3 lakh km2 and area of UP = 2 lakh km2.
1) How many people are there per km2 in both these States?
2) Which State is less populated?
Fill in the blank for the given equivalent ratio.
6 : ____ = 1 : 2
Complete the table.
| Feet | 1 | 2 | 3 | ? |
| Inch | 12 | 24 | ? | 72 |
Divide the numbers given below in the required ratio.
20 in the ratio 3 : 2
Divide the numbers given below in the required ratio.
27 in the ratio 4 : 5
Divide the numbers given below in the required ratio.
40 in the ratio 6 : 14
An equivalent ratio of 4 : 7 is
If ₹ 1600 is divided among A and B in the ratio 3 : 5, then, B’s share is
