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What is the breathing rate in human beings?
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A person's respiratory rate is the number of breaths you take per minute. The normal respiration rate for an adult at rest is 16 to 20 breaths per minute.
Sum of twice a fraction and 5 times its reciprocal is 7. what is the fraction ?
A sum of Rs. 2600 is lent out into two parts, one at 9% and another at 7% if the total annual income is Rs. 206, find the money lent at 7%.
In a fort there was sufficient food for 200 soldiers for 31 days. After 27 days, 120 soldiers left the fort. For how many extra days will the rest of the food last for the remaining soldiers?
Quantity of food = 200 x 31 = 6200 man-days Till 27 days, quantity consumed = 27 x 200 = 5400 man-days Remaining quantity = 6200 – 5400 = 800 man days Remaining soilders = 200 – 120 = 80 Let remaining food will be sufficient for x days ⇒5400 + 80x = 6200 ⇒x= 10 days
Directions For Questions
In the following question, some statements are given followed by some conclusions. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow the given statements, disregarding commonly known facts.
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Statements :
No bombs are mortar.
All rockets are bombs.
Conclusions :
I. All mortar are rockets.
II. Some bombs are rockets
As no mortar is bombs, so we can deduce that no mortar is rockets because all rockets are bombs, hence conclusion I does not follow. As all rockets are bombs, some bombs are rocket is true hence conclusion II follows.
The International Cricket Council (ICC) has accredited a PCB run biomechanics lab in ______.
The International Cricket Council (ICC) has accredited a PCB run biomechanics lab in Lahore. The ICC accredited the biomechanics lab as a testing centre for players with suspected bowling actions.
What type of Reaction takes place in sun?
Nuclear fusion reaction takes place in sun as well as stars. The process is carried by proton-proton chain. The sun starts with protons, and through a series of steps, turns them into helium. Every second 600 million tons of hydrogen is converted into helium. The reaction releases tremendous amount of heat and energy.
Which of the following is not present in animal cells?
Animal cells do not have cell walls. Cell walls are found in plant cells. Other given organelles like Mitochondria, Ribosome and Cytoplasm are present in animal cells.
A concave mirror is used to form an image of the sun on a white screen. If the lower half of the mirror is covered with a black paper, the effect on the image on the screen would be :
If lower half of a mirror is coverd with a black paper then complete image of the object will be formed as before. However, the image win be less bright now.
Five years ago, the average age of A, B and C was 20 years. Four years ago, the average age of A and B was 19 years. C's present age (in years)
A + B + C = 20 × 3 + 5 × 3 ⇒ A + B + C = 75......1) A + B = 19 × 2 + 4 × 2 ⇒ A + B = 46.......2) From equation 1) and 2) C = 75 − 46 = 29
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