The answer is 60 because 2x3 is 6 so 20x 3 is 60
Answer:
The value of T₂₀ - T₁₅ is <u>-20</u>.
Step-by-step explanation:
<u>Given</u> :
<u>To</u><u> </u><u>Find</u> :
<u>Using Formula</u> :
General term of an A.P.

- >> Tₙ = nᵗʰ term
- >> a = first term
- >> n = no. of terms
- >> d = common difference
<u>Solution</u> :
Firstly finding the A.P of T₂₀ by substituting the values in the formula :






Hence, the value of T₂₀ is a + 19d.

Secondly, finding the A.P of T₁₅ by substituting the values in the formula :






Hence, the value of T₁₅ is a + 14d

Now, finding the difference between T₂₀ - T₁₅ :









Hence, the value of T₂₀ - T₁₅ is -20.

Answer:
Is there anyway you can explain it more?
Answer:
a) 4
b) 12
Step-by-step explanation:
Since, when an orange ball is drawn, three coins are tossed. So, sample points are
OHHH, OHHT, OHTH, OHTT. OTHH, 0THT, OTTH, OTTT
So, clearly, 8 sample points will have an orange ball.
When a blue ball is drawn, two coins are tossed. So, sample points are BHH,BHT,BTH,BTT.
So, clearly, 4 samples points will when a blue ball is drawn.
Total samples points=4+8=12