Ques 1: A number of people is or a number of people are?
Ans: Although the expression 'a number' is strictly singular, the phrase 'a number of' is used with plural nouns. The verb should therefore be plural
Eg.: A number of people are waiting for the bus.
However, 'the number' is singular
Eg.: The number of people here has increased since this morning.
Ques 2: The first train took twenty-six minutes to complete the route, which ran from City Hall to West 145th Street in under a half an hour.
Redundancy is sometimes tricky to spot. Especially when, like here, the repeating thing is a concept rather than a word used more than once, and is placed far away in the sentence from whatever it’s duplicating.
is sometimes tricky to spot. You first have to realize that 26 minutes is the same thing as "under a half an hour
Solve 9x - 1 = 0
x + 3
What is a Rational Equation?
A rational equation is an equation that contains at least one rational expression.
To Solve a Rational Equation......
The relationship between the coefficients of the components of a balanced chemical is referred to as the:
e ) cosmology
The other options are wrong because:
(a) tracheometry is a medical process of opening up the neck so that tubes can be placed through the windpipe.
(b) symmetry is the property of a shape to look the same on both sides with reference to some midpoint.
(d) numerology is a belief that numbers have a paranormal nature to them.
(e) cosmology is astronomy with a focus on the history of the universe.
There are words that sound the same but have different spellings and meanings. These are a few of the commonly confused words
You're vs your
To vs two vs too
Weather vs whether
There vs their
Eg: Incorrect: There father went to school there
Correct: Their father went to school there
One positive number is 15 times another positive number. The difference between the two numbers is 140. Find the two numbers.
If peak A has a retention time rA=2 min. and peak B has a retention time of rB=5 min., what is the resolution of these two peaks given that both have a peak width of 1.0 min.?