A man buys Bank's cash certificates every year for a value exceeding ...

A man buys Bank's cash certificates every year for a value exceeding the last year's purchase by Rs 400. After 24 years, he finds that the total value of the certificate purchased by him is Rs 144,000. What is the value of the certificates purchased by him in the 13th year?

Your Answer

This is problem of ap . s=144000 d=400 n=24 then apply s=n÷2(2a+(n-1)) find a then a+12d

Aptitude
Practice Mock Test
Aptitude