railway DFCCIL MTS 2025 Mock Test Series Quantitative Aptitude Algebra Identities

જો a3 - b3 = 125, a2 - b2 = 25 અને a + b = 5 હોય, તો a2 + ab + b2 ની કિંમત શું છે?

1
125
2
5
3
25
4
130
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