Multiple Choice Question: One bag contains 4 white balls and 3 black balls, and a second bag contains 3 white balls and 5 black balls.

One bag contains 4 white balls and 3 black balls, and a second bag contains 3 white balls and 5 black balls. One ball is drawn at random from the second bag and is placed unseen in the first bag. What is the probability that a ball now drawn from the first bag is black?

Log in or register to post comments

More Old MCQ

Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.

Solve for x if $\ln e^{\sqrt{x + 1}} = 3$.
A rectangle ABCD which measures 18 by 24 units is folded once, perpendicular to diagonal AC, so that the opposite vertices A and C coincide. Find the length of the fold.
Simplify and solve for y: $y = \ln \left( \dfrac{e^x}{e^{x - 1}} \right)$.
A time deposits of P110,000 for 31 days earns P890.39 on maturity date after deducting the 20% withholding tax on interest income. Find the rate of interest per annum.
Three numbers whose sum is 42 are in GP. If 1 is subtracted from the first, 3 from three from the second, and 11 from the third, the remainders will be in AP. Find the smallest number.
X7MyoLt-2 There is 1 flaw in 3-meter length.
All factors being equal, which of the following concrete mixes has the highest 28-day compressive strength?
A large sewer system will cost P8,750,000 annually. There will be favorable consequences to the general public of P25,000,000 annually and adverse consequences to a small segment of the public of P2,500,000 annually. What is the benefit to cost ratio?
Find the area reflected by the triangle ABC on the xy-plane with A(1, 10, 10), B(6, 2, 4) and C(12, 6, 1).
vSk9ZBx-3 Find the equation of the given line in the uv-plane.
Solve for x from $\sqrt{x - 7} - \sqrt{x} = 1$.
Company X has a fixed expense of P1.5M monthly and each unit is produced at P20
At what value of x will the function $f(x) = \dfrac{x - 4}{x + 2}$ is discontinuous?
The value of $10^{\log_{10} 7}$ is:
A battalion, 20 miles long, advances 20 miles. During this time, a messenger on a horse travels from the rear of the battalion to the front and immediately turns around, ending up precisely at the rear of the battalion...

Home • Forums • Blogs • Glossary • Recent
About • Contact us • Terms of Use • Privacy Policy • Hosted by Linode • Powered by Drupal

MATHalino - Engineering Mathematics • Copyright 2024 Jhun Vert • All rights reserved