allery16, 72 અને 28 નો ગુ.સા.અ. (HCF) શું છે?
A3
B4
C2
D1
Answer & Solution
Correct answer: B. 4
1. 16 = 2^4, 72 = 2^3 x 3^2, 28 = 2^2 x 7.
2. સામાન્ય અવિભાજ્ય અવયવ 2 છે, સૌથી નાની ઘાત 2^2 = 4 છે.
3. તેથી ગુ.સા.અ. (HCF) = 4.
_સ્ત્રોત: RRB Group D CEN-02/2018 PYQ, Q.25._
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