Math, asked by nandanasp0505, 1 year ago

the sum of first 25 terms of an ap is 1600. if its common difference is 5, find the first term

Answers

Answered by thomasalex970

1

Answer:

WHAT IS AP

Step-by-step explanation:

Answered by pranavgreat169

1

Answer:

4

Step-by-step explanation:

S25 = 25/2(2a + (25-1)5)

1600 = 25/2 (2a + 120)

128 = 2a+120

2a = 8

a = 4

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