Discussion

Explanation:

Let Animesh invest Rs. a in PPF and Rs. b in NSC.

∴ a3 = b2

Also, a + b = 150000

∴ 5b/2 = 150000

∴ b = 60000

Let Aniket invest Rs. x in PPF.

∴ He invests Rs. (x + 40000) in shares and Rs. (x + 20000) in NSC.

Also, x + x + 40000 + x + 20000 = 150000

∴ x = 30000

∴ Aniket’s investment in NSC = Rs. 50000

Animesh’s investment in NSC = Rs. 60000

∴ Difference = Rs. 10000

Hence, option (d).

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