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1
JEE Main 2020 (Online) 7th January Evening Slot
Numerical
+4
-0
If the mean and variance of eight numbers 3, 7, 9, 12, 13, 20, x and y be 10 and 25 respectively,
then x.y is equal to _______.
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2
JEE Main 2020 (Online) 7th January Morning Slot
Numerical
+4
-0
If the variance of the first n natural numbers is 10 and the variance of the first m even natural
numbers is 16, then m + n is equal to_____.
Your input ____
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