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Quantitative Aptitude

Progressions

What is the s...

Question

What is the sum of the 11 terms of an Arithmetic Progression whose $3^{r d}$ term is 10 and the $9^{t h}$ term is 20?

A

135

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B

165

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C

330

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D

None of these

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Solution

The correct option is B
165

B

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