Question

28. A number M is divisible by 25. If (M + 5) (M + 1) is divided
by 25, then what will be the remainder?
(a) 5
(6) 6
(c) 1
(d)3
♡ (a) Given, (M + 5) (M + 1) = M2 + M + 5M + 5
= M2 + 6M + 5
It is also given that M is divisible by 25.
::M2 + 6M + 5 is divided by 25 it means remainder will be 5.
.. Required remainder = 5
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Answer 1

Answer:

5

Step-by-step explanation:

(m+1)(m+5)= m^2+6m+5

now (m^2+6m+5)/25

m^2/25+6m/25+5/25

as m is divisible by 25 so m^2 and 6 m will also b divisible by 25 so here reminder will be=0

now 5/25

here 5 can't be divisible by 25 so reminder= 5