Question

a container containing 76 purple balls, 130 yellow balls and 155 green balls. if randomly selected, what is the probability of getting a purple ball?

Thank you

Answer 1

Q) A container containing 76 purple balls, 130 yellow balls and 155 green balls. if randomly selected, what is the probability of getting a purple ball?

Answer:-

Finding Probability :-

(No. of favorable outcomes) / (Total no. of possible outcomes)

No. of favorable outcomes = 76

( because there are only 76 purple balls )

Total no. of possible outcomes = 361

Probability of getting a purple ball = 76/361 = 4/19

Answer 2

Answer:

$\huge \pink \dag \mathbb \color{cyan}A \color{pink}N \color{orange}S \color{blue}W \color{green}E \color{gray}R \color{purple} \leadsto$

$\huge{ \boxed{ \bold{ \sf{14 \: amu}}}}$

Explanation:

✑ First, Let's explore about ATOMIC MASS :

↱ An atom consists of electrons , protons and neutrons. The mass of electron is extremely small and it is taken as a negligible mass compared to the mass of a proton or neutron. Thus , The atomic mass is defined as the sum of the number of protons and neutrons present in the nucleus of an atom of that element. If is also called atomic weight. It is denoted by A. The nucleus determines the mass of an atom, while the number of electrons determines the size of the atom of the element.

Mathematically,

Atomic mass = Number of protons + Number of neutrons

i.e $\boxed{ \sf{A = p^{ + } + n^{0}}}$

———————————————————————

✎ Now , Let's find the atomic mass of atom having 6 protons and 8 neutrons :

☞ Atomic mass = No. of protons + No. of neutrons

➵ Atomic mass = 6 + 8

➵ Atomic mass =$\boxed{ \sf{14 \: amu}}$

And we're done !

Hope I helped!

Have a wonderful day! ツ

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