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5.3 ques 5

Posted by Apurv Choudhary 5 years, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

Tanisha Sharma 5 years, 8 months ago

a=5, l= 45, Sn=400 Sn=n/2(a+l) 400=n/2(5+45) =n/2×50=25n n=400/25 =16 l=a+(n-1)d 45=5+(16-1)d 40=15d d=40/15 =8/3 n=16 and d=8/3

1Thank You

God God 5 years, 8 months ago

Use both formula An and Sn

0Thank You

God God 5 years, 8 months ago

A is 5 An is 45 Sn is 400 N is ? And d is ?

0Thank You

God God 5 years, 8 months ago

Hello

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Posted by Kanika . 1 week, 2 days ago

CBSE > Class 10 > Mathematics