The common difference of an A.P. in which a_{15} - a_{11} = 48, is... | MCQ 1m | Maths | SuperPadhai

Arithmetic Progressions > Question

MCQ1 markYear: 2024EasyCBSE Class 10

arithmetic-progressionscommon-difference

Question

The common difference of an A.P. in which

a_{15} - a_{11} = 48

, is

Solution

1

a_{15} - a_{11} = (a + 14 d) - (a + 10 d) = 4 d = 48 \Rightarrow d = 12

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