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Kshiteej

Ans is 6121.
31-1 = 30 = (3)^3 +3
253-31 = 222 = (6)^3 + 6
991 -253 = 738 = (9)^3 + 9
2731 - 991 =1740 =(12)^3 + 12
so te ans will be 2731 + (15)^3 + 15 =6121

Kshiteej Contributor
19Aug2009,15:07
	Ans is 6121. 31-1 = 30 = (3)^3 +3 253-31 = 222 = (6)^3 + 6 991 -253 = 738 = (9)^3 + 9 2731 - 991 =1740 =(12)^3 + 12 so te ans will be 2731 + (15)^3 + 15 =6121 nimesh, xpi0t0s likes this