Math, asked by sidduchandan1550, 1 year ago

The 7th term of an ap is 15 and the 12th term is 25. Calculate(i)1st term (ii)common difference(iii) sum of 1st 40 terms

Answers

Answered by PoulamiBiswas

the common difference is (25-15)/(12-7) = 2

the first term is 1

Answered by maryam26

Common difference =2
First no= 3
Sum of first 40= 1680

If it is correct mark as brainliest ..
I hv done step by step refer to the the pic u will understand ..!

#Marya..❤️

Attachments:

Previous Question

Next Question

Similar questions

Math, 6 months ago

.The two linear pair angles are 3x+10 and 2x-30 then find the value of 40 +4x...

Chemistry, 6 months ago

if atomic number is 24 amd m=0 then find total number of electrons...

Science, 6 months ago

17. Coal and disel have a Potasium b Sulphur c Zinc d all of these...

English, 1 year ago

________ environment is used to deploy private clouds for critical workloads and a public cloud to host less critical workloads.

Physics, 1 year ago

Show that Newton’s second law is the real law of motion ( derive first and third law using second law)...

Social Sciences, 1 year ago

Mehbooba Mufti belongs to which of the following political parties? 1) National Conference 2) PDF 3) NCP 4) JantaDal 5) None of these...

Social Sciences, 1 year ago

Which one of the following pieces of advice has/have been given by leading Economists to Finance Minister during their pre-budget meeting with him? (A) To take measures to boost farm productivity only (B) To improve supply of agricultural products only (C) To reduce the ﬁscal deﬁcit only l)Only(A) 2)Only(B) 3)Only(C) 4) All (A), (B) and (C) 5) Only (A) and (B)...

Hindi, 1 year ago

heparin meaning in hindi what is heparin...