Q- If 5 men or 7 women can earn Rs. 875 per day, how much 10 men and 5 women earn per day?
Q- A photograph of bacteria enlarged 30000 times attains a length of 3 cm. Find the actual length of bacteria.
Q- Rashmi types 510 words in half an hour. How many words would she type in 10 minutes?
Q2. 30,000L = 3cm.
L = 1*10^-4 cm.
Q3. 10/30 * 510 = 170 words.
Q1. (10/5)875 + (5/7)875 = 2375.
A- To solve this problem, we can use the concept of proportionality.
We are given that 5 men or 7 women can earn Rs. 875 per day. Let's break this down:
1. For 5 men to earn Rs. 875 per day, we can set up the proportion:
5 men / Rs. 875 = 1 man / x (the amount earned by 1 man)
To find the value of x (the amount earned by 1 man), we can cross-multiply and solve for x:
5x = 1 * Rs. 875
x = Rs. 875 / 5
x = Rs. 175
2. Similarly, for 7 women to earn Rs. 875 per day, we can set up the proportion:
7 women / Rs. 875 = 1 woman / y (the amount earned by 1 woman)
Solving for y:
7y = 1 * Rs. 875
y = Rs. 875 / 7
y = Rs. 125
Now, we can calculate the earnings of 10 men and 5 women per day by adding up their individual earnings:
Earnings of 10 men = 10 * (Rs. 175) = Rs. 1750
Earnings of 5 women = 5 * (Rs. 125) = Rs. 625
Therefore, 10 men and 5 women earn a total of Rs. (1750 + 625) = Rs. 2375 per day.
To summarize, 10 men and 5 women earn Rs. 2375 per day.
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A- To find the actual length of the bacteria, we need to use the given information about the photograph's enlargement and the measured length.
We are given that the photograph of bacteria is enlarged 30,000 times and has a length of 3 cm.
To find the actual (original) length of the bacteria, we can set up a proportion:
Enlarged length / Enlargement factor = Actual length
In this case, the enlarged length is 3 cm, and the enlargement factor is 30,000:
3 cm / 30,000 = Actual length / 1
Simplifying the proportion, we get:
Actual length = (3 cm * 1) / 30,000
Actual length = 0.0001 cm
Therefore, the actual length of the bacteria is 0.0001 cm.
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A- To find out how many words Rashmi would type in 10 minutes, we can use the given information and the concept of proportionality.
We are given that Rashmi types 510 words in half an hour. First, let's find out how many words she types in 1 minute:
Words typed in 1 minute = 510 words / (30 minutes / 1 minute)
Words typed in 1 minute = 510 words / 0.5
Words typed in 1 minute = 1020 words
Now, we can use this information to find out how many words Rashmi would type in 10 minutes:
Words typed in 10 minutes = (Words typed in 1 minute) * 10
Words typed in 10 minutes = 1020 words * 10
Words typed in 10 minutes = 10200 words
Therefore, Rashmi would type 10,200 words in 10 minutes.