Mathematics · 2021
JEE Main · 31 August 2021, Shift 1 · Q90
The mean of 10 numbers 7 × 8,10 × 10,13 × 12,16 × 14, … is \ \ \ \.
The mean of $\displaystyle 10$ numbers
$\displaystyle 7 \times 8,10 \times 10,13 \times 12,16 \times 14, \ldots$ is \_\_\_\_.
Official answer
398
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.