If $1$ is subtracted from the last digit of each of the given below three digit numbers, the sum of the digits of how many of them are prime numbers?
$972526487359251$

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Solution

The correct option is B two
If according to the question if $1$ is subtracted from the last digit of each of the given three digit numbers then numbers are-
$971525486358250$
in the given three digit number only two numbers sum is a prime number
$9 + 7 + 1 = 17$
$2 + 5 + 0 = 7$

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If 1 is subtracted from the last digit of each of the given below three digit numbers, the sum of the digits of how many of them are prime numbers?972 526 487 359 251

The correct option is B twoIf according to the question if 1 is subtracted from the last digit of each of the given three digit numbers then numbers are-971 525 486 358 250in the given three digit number only two numbers sum is a prime number9+7+1=172+5+0=7

If $1$ is subtracted from the last digit of each of the given below three digit numbers, the sum of the digits of how many of them are prime numbers?
$972526487359251$

The correct option is B two
If according to the question if $1$ is subtracted from the last digit of each of the given three digit numbers then numbers are-
$971525486358250$
in the given three digit number only two numbers sum is a prime number
$9 + 7 + 1 = 17$
$2 + 5 + 0 = 7$