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Year

CAT 2023

Section

Quantitative

Topic

Progression

Difficulty

Hard

Question

Slot-2

Let both the series a1,a2,a3,a_1, a_2, a_3, \ldots and b1,b2,b3b_1, b_2, b_3 \ldots be in arithmetic progression such that the common differences of both the series are prime numbers. If a5=b9,a19=b19a_5=b_9, a_{19}=b_{19} and b2=0b_2=0 , then a11a_{11} equals

79

83

86

84

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