“Fifteen block puzzle” has been added to your cart. Continue shopping Product Price Quantity Subtotal ∑n2 = n(n+1)(2n+1)/6 ₹420.00 ∑n2 = n(n+1)(2n+1)/6 quantity ₹420.00 Fifteen block puzzle ₹290.00 Fifteen block puzzle quantity ₹290.00 Coupon: Cart Totals Subtotal ₹710.00 9% CGST ₹63.90 9% SGST ₹63.90 Total ₹838.00 Continue Shopping Checkout