Question

find the sum of all two digit natural numbers which when divided by 7 yield 2as remainder

Answer 1

Answer:

Step-by-step explanation:

y/7 =x+2/7

y=7x+2

x=2→ y=16

x=3→ y=23

x=4→ y=30

x=5→ y=37

x=6→ y=44

:

:

x=13→ y=93

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sum=12/2(16+93)

=6(109)=654

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