Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Question 39
The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?
Solution
$$T_{3}$$ = a + 2d = -9-------(1)
$$T_{7}$$ = a + 6d = 11-------(2)
on solving (1) AND (2)
d = 5 & a = -19
$$T_{15}$$ = a + 14d = -19 + 14(5) = 51
so the answer is option C.
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
