B
9 sec=4 times
x sec=12 times
x=(9*12)/4=27 sec
6
15km/hr
0.000256
B. The Secretary, Ministry of Finance is the right answer
7
these are question tht are seem to be like it consumes
time. so dont see jus the question and run to the next .
ans. a) 12
if 9 balls are added then the ratio to the combination
becomes 2:4:3.
9 balls make the ratio 3 for grey balls in tht mixture.
so the factor is 9/3 = 3 (in tht mixture)
so the same factor has to be maintained through out the
ratio. so black balls is 4 * 3 = 12 and white balls is 2 *
3 = 6.
12 %
if rs 12 and rs 15 per meter then 750*12+750*15
600
64
4
Reliable Assistance: I promise to provide reliable and accurate assistance in answering questions, providing information, and engaging in meaningful conversations. I strive to deliver helpful and relevant responses to the best of my abilities, drawing from the vast knowledge and information I have been trained on.
Continuous Improvement: I promise to continuously improve my capabilities and expand my knowledge base. As technology evolves and new information becomes available, I aim to stay up-to-date and provide the most accurate and relevant information possible. I strive to enhance my understanding of different topics and improve the quality of my responses over time.
Respectful and Ethical Interaction: I promise to interact with users in a respectful and ethical manner. I am programmed to respect user privacy, confidentiality, and cultural sensitivities, aiming to provide a positive and helpful experience for those who engage with me.
Please note that while I can provide valuable assistance and information, there are certain tasks that may be better suited for human professionals with expertise in specific fields.
Let the number of males be given the name M.
Let the number of females be given the name F.
If 15 females are absent, then M will be twice that of
present females.
This means that M = 2 * (F – 15)
M = 2 * F – 30.
or 2 * F – M = 30.
Now if in addition to the 15 females being absent, we also
have 45 males being absent,
then this gives the equation,
(F – 15) = 5 * (M – 45)
which simplifies to
F – 15 = 5 * M – 225
5 * M – F = 210
Pulling the equations together, we get
5 * M – F = 210
-M + 2 * F = 30
Multiply the first equation by 2, and keep the second
equation as is.
10 * M – 2 * F = 420
– M + 2 * F = 30
Add the equations.
9 * M = 450
M = 50
Verify answer.
Calculate F
from – M + 2 * F = 30
-50 + 2 * F = 30
2 * F = 30 + 50
F = 40.
If 15 females are absent, then number of males will be twice
that of females.
40 – 15 = 25.
50 = 2 * 25. Confirmed.
If also 45 males were absent, then female strength would be
5 times that of males.
Female strength is 25 due to the 15 females being absent.
50 – 45 = 5.
25 = 5 * 5. Confirmed.
4
32,7