Two numbers are respectively 35% and 80% more than a thir...
Two numbers are respectively 35% and 80% more than a third number. The ratio of the two numbers is
7 : 16
3 : 4
16 : 7
4 : 3
Correct answer is B
Let the third number = \(x\)
Then the first number = 100% \(x + 35%x = 135\)%\(x = \frac {135x}{100} = 1.35x\) (Note: 100% \(x = x\))
The second number = 180% \(x = \frac {180x}{100} = 1.80x\)
∴ The ratio of the first number to the second number = \(1.35x : 1.80x = 3 : 4\)
In the diagram above, ∠SPQ = 79o. Find ∠SRQ...
Find the probability that a number selected at random from 40 to 50 is a prime ...
In the diagram, PQR is a straight line, (m + n) = 120o and (n + r) = 100o. Find (m + r)...
Calculate the value of Y in the diagram ...
If M(4, q) is the mid-point of the line joining L(p, -2) and N(q, p). Find the values of p and q ...
If 2257 is the result of subtracting 4577 from 7056 in base n, find n ...
Evaluate, correct to three decimal place \(\frac{4.314 × 0.000056}{0.0067}\)...