Question

Q6.The sum of successive odd numbers 1, 3, 5, 7, 9, 11, 13 and 15 is ______. / ਲਗਾਤਾਰ ਟਾਂਕ ਸੰਖਿਆਵਾਂ 1, 3, 5, 7, 9, 11, 13 ਅਤੇ 15 ਦਾ ਜੋੜ_______ ਹੈ ? / क्रमिक विषम संख्याओं 1, 3, 5, 7, 9, 11, 13 और 15 का योग _____है ? *
81
64
49
36​

Answer 1

Answer:

64

Step-by-step explanation:

Answer 2

Given :-

• First term = 1

• Last term = 15

• Number of terms = 8

To Find :-

• Sum of given successive odd numbers

Solution :-

$\longrightarrow \: \underline{ \boxed{\sf \orange{ S_n = \frac{n}{2} \big(a + l \big) }}} \\ \\\longrightarrow \: \sf S_n = \frac{8}{2}(1 + 15) \\ \\\longrightarrow \: \sf S_n =4 \times 16 \\ \\\longrightarrow \: \underline{ \boxed{\sf \red{ S_n =64}}}$